Global Change Biology Bioenergy最新文献

{"title":"Transcriptomics reveal how circadian regulation contributes to starch hyperaccumulation in marine alga Tetraselmis helgolandica","authors":"Qianwen Shi,&nbsp;Zuodong Zhou,&nbsp;Zhiwei Hong,&nbsp;Zhi Yang,&nbsp;Zhengquan Gao,&nbsp;Liyun Sun,&nbsp;Jianhua Fan","doi":"10.1111/gcbb.13106","DOIUrl":"https://doi.org/10.1111/gcbb.13106","url":null,"abstract":"<p><i>Tetraselmis helgolandica</i> var. Tsingtaoensis is a marine microalga. It can produce a large amount of starch, especially amylose, with addition of carbon source and specific circadian rhythm. The mechanism behind this phenomenon is still unclear. Analysis of this mechanism can help to develop <i>T. helgolandica</i> into a new green bioengineering chassis organism. We explained how circadian rhythm and glucose affect the rate of starch accumulation and starch structure in <i>T. helgolandica</i> based on the transcriptome. The glucose inhibited the photosynthetic system of <i>T. helgolandica</i>, while the circadian rhythm can alleviate the inhibition. Circadian rhythm induced the upregulation of Embden–Meyerhof–Parnas pathway and pentose phosphate pathway (PPP) in <i>T. helgolandica</i>, but had little effect on the tricarboxylic acid cycle. PPP pathway provides Ribulose-1,5-bisphosphate, which may be beneficial for dark reactions and nucleotide synthesis. And PPP pathway provides Nicotinamide adenine dinucleotide phosphate, which facilitates energy substance synthesis. This will further upregulate the starch metabolic pathway. The transcript level of the key gene ADP-Glucose pyrophosphorylase is mainly regulated by glucose. The granule-bound starch synthase (<i>gbss</i>), a key gene for amylose synthesis, is mainly influenced by circadian rhythm. In general, the increase of starch synthesis and amylose ratio requires both glucose addition and circadian rhythm. We report the first referenced transcriptome of <i>T. helgolandica</i>. Differences between transcripts reveal how circadian rhythm and glucose addition affected the rate of starch synthesis and structural variation. It provides a reference for an in-depth study of starch synthesis in green algae.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 12","pages":"1477-1493"},"PeriodicalIF":5.6,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109164364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Natural lignin modulators improve bagasse saccharification of sugarcane and energy cane in field trials","authors":"Viviane Fátima de Oliveira,&nbsp;Lucas Figueiredo,&nbsp;Gabriel de Oliveira Correia,&nbsp;Maria de Fátima Pires da Silva Machado,&nbsp;Hugo Zeni Neto,&nbsp;Wanderley Dantas dos Santos,&nbsp;Claudete Aparecida Mangolin","doi":"10.1111/gcbb.13108","DOIUrl":"https://doi.org/10.1111/gcbb.13108","url":null,"abstract":"<p>The burgeoning cellulosic ethanol industry necessitates advancements in enzymatic saccharification, effective pretreatments for lignin removal, and the cultivation of crops more amenable to saccharification. Studies have demonstrated that natural inhibitors of lignin biosynthesis can enhance the saccharification of lignocellulose, even in tissues generated several months post-treatment. In this study, we applied daidzin (a competitive inhibitor of coniferaldehyde dehydrogenase), piperonylic acid (a <i>quasi</i>-irreversible inhibitor of cinnamate 4-hydroxylase), and methylenedioxy cinnamic acid (a competitive inhibitor of 4-coenzyme A ligase) to 60-day-old crops of two conventional Brazilian sugarcane cultivars and two energy cane clones, bred specifically for enhanced biomass production. The resultant biomasses were evaluated for lignin content and enzymatic saccharification efficiency without additional lignin-removal pretreatments. The treatments amplified the production of fermentable sugars in both the sugarcane cultivars and energy cane clones. The most successful results softened the most recalcitrant lignocellulose to the level of the least recalcitrant of the biomasses tested. Interestingly, the softest material became even more susceptible to saccharification.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 12","pages":"1465-1476"},"PeriodicalIF":5.6,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109162374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Triacylglycerol, total fatty acid, and biomass accumulation of metabolically engineered energycane grown under field conditions confirms its potential as feedstock for drop-in fuel production","authors":"Viet Dang Cao,&nbsp;Baskaran Kannan,&nbsp;Guangbin Luo,&nbsp;Hui Liu,&nbsp;John Shanklin,&nbsp;Fredy Altpeter","doi":"10.1111/gcbb.13107","DOIUrl":"https://doi.org/10.1111/gcbb.13107","url":null,"abstract":"<p>Metabolic engineering for hyperaccumulation of lipids in vegetative tissues of high biomass crops promises a step change in oil yields for the production of advanced biofuels. Energycane is the ideal feedstock for this approach due to its exceptional biomass production and persistence under marginal conditions. Here, we evaluated metabolically engineered energycane with constitutive expression of the lipogenic factors <i>WRINKLED</i>1 (<i>WRI</i>1), <i>DIACYLGLYCEROL ACYLTRANSFERASE</i>1 (<i>DGAT</i>1), and <i>OLEOSIN</i>1 (<i>OLE</i>1) for the accumulation of triacylglycerol (TAG), total fatty acid (TFA), and biomass under field conditions at the University of Florida-IFAS experiment station near Citra, Florida. TAG and TFA accumulation were highest in leaves (up to 9.9% and 12.9% of DW, respectively), followed by juice from crushed stems, stems, and roots. TAG and TFA accumulation increased up to harvest time and correlated highest with <i>OLE</i>1 and <i>DGAT</i>1 expression. Biomass dry weight, TAG, and TFA content differed greatly depending on <i>DGAT</i>1 and <i>OLE</i>1 expression in transgenic lines with similar <i>WRI</i>1 expression. Biomass did not significantly differ between WT and line L2 with <i>DAGT</i>1 and <i>OLE</i>1 expressed at low levels and TAG and TFA accumulating to 12- and 1.6-fold that of WT leaves, respectively. In contrast, line L13, with intron-mediated enhancement of <i>DGAT</i>1 expression, displayed a 245- to 330-fold increase in TAG and a 4.75- to 6.45-fold increase in TFA content compared with WT leaves and a biomass reduction of 52%. These results provide the basis for developing novel feedstocks for expanding plant lipid production and point to new prospects for advanced biofuels.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 12","pages":"1450-1464"},"PeriodicalIF":5.6,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109176014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential for biochar carbon sequestration from crop residues: A global spatially explicit assessment","authors":"Shivesh Kishore Karan,&nbsp;Dominic Woolf,&nbsp;Elias Sebastian Azzi,&nbsp;Cecilia Sundberg,&nbsp;Stephen A. Wood","doi":"10.1111/gcbb.13102","DOIUrl":"https://doi.org/10.1111/gcbb.13102","url":null,"abstract":"Global warming necessitates urgent action to reduce carbon dioxide (CO2) emissions and remove CO2 from the atmosphere. Biochar, a type of carbonized biomass which can be produced from crop residues (CRs), offers a promising solution for carbon dioxide removal (CDR) when it is used to sequester photosynthetically fixed carbon that would otherwise have been returned to atmospheric CO2 through respiration or combustion. However, high‐resolution spatially explicit maps of CR resources and their capacity for climate change mitigation through biochar production are currently lacking, with previous global studies relying on coarse (mostly country scale) aggregated statistics. By developing a comprehensive high spatial resolution global dataset of CR production, we show that, globally, CRs generate around 2.4 Pg C annually. If 100% of these residues were utilized, the maximum theoretical technical potential for biochar production from CRs amounts to 1.0 Pg C year−1 (3.7 Pg CO2e year−1). The permanence of biochar differs across regions, with the fraction of initial carbon that remains after 100 years ranging from 60% in warm climates to nearly 100% in cryosols. Assuming that biochar is sequestered in soils close to point of production, approximately 0.72 Pg C year−1 (2.6 Pg CO2e year−1) of the technical potential would remain sequestered after 100 years. However, when considering limitations on sustainable residue harvesting and competing livestock usage, the global biochar production potential decreases to 0.51 Pg C year−1 (1.9 Pg CO2e year−1), with 0.36 Pg C year−1 (1.3 Pg CO2e year−1) remaining sequestered after a century. Twelve countries have the technical potential to sequester over one fifth of their current emissions as biochar from CRs, with Bhutan (68%) and India (53%) having the largest ratios. The high‐resolution maps of CR production and biochar sequestration potential provided here will provide valuable insights and support decision‐making related to biochar production and investment in biochar production capacity.","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 12","pages":"1424-1436"},"PeriodicalIF":5.6,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109168512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vermicompost derived from mushroom residues improves soil C/P cycling, bacterial community, and fungal abundance","authors":"Dongqi Jiang,&nbsp;Chenran Wu,&nbsp;Shuqiang Wang,&nbsp;Yulan Zhang,&nbsp;Zhenhua Chen,&nbsp;Nan Jiang,&nbsp;Ying Zhang,&nbsp;Hongtu Xie","doi":"10.1111/gcbb.13103","DOIUrl":"https://doi.org/10.1111/gcbb.13103","url":null,"abstract":"<p>The utilization of agricultural waste organic materials through composting technology has gained significant traction in agricultural production as an effective means of crop nutrient management. However, the differences in the impact of organic amendments prepared by traditional composting and vermicomposting on soil properties still deserve further research. Based on field experiments conducted in greenhouse, compared to chemical fertilizer treatments as control, we utilized traditional compost (OF) and vermicompost (VcF) derived from agricultural organic waste edible mushroom bran and cow manure (2:8). Variations in soil physiochemical properties, activities of soil enzymes related C and P cycling, abundances and diversities of bacterial 16S rRNA and fungal ITS gene at total DNA level were analyzed. Both compost treatments enhanced soil organic carbon, soil total phosphorus, and soil available P content significantly and also increased the activities of soil α-glucosidase, β-glucosidase, acid phosphomonoesterase, and alkaline phosphomonoesterase significantly. The above results suggested that soil C and P transformations were stimulated effectively by both organic amendments. OF and VcF increased the fungal ITS absolute abundances significantly while diversity indices of soil bacterial community increased significantly under both treatments. Correlation analysis indicated that bacterial community composition was strongly correlated with several soil property indexes while fungal community composition was only significantly correlated with soil total phosphorous content. In conclusion, similar to traditional compost, vermicompost significantly improved soil nutrient cycling (especially C and P aspects). In terms of soil microbes, bacteria and fungi showed different responding mechanism to vermicompost: bacteria adjust microbial structure, while fungi tend to proliferated. In consideration of the advantages of vermicompost in technology and economic cost, it could be applied in the subsequent agricultural production more frequently.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 12","pages":"1437-1449"},"PeriodicalIF":5.6,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109169113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass potential from agricultural residues for energy utilization in West Nusa Tenggara (WNT), Indonesia","authors":"Hidayatul Fitri,&nbsp;Gürkan A. K. Gürdil,&nbsp;Bahadır Demirel,&nbsp;Elçin Yeşiloğlu Cevher,&nbsp;Hynek Roubík","doi":"10.1111/gcbb.13100","DOIUrl":"https://doi.org/10.1111/gcbb.13100","url":null,"abstract":"<p>The West Nusa Tenggara (WNT) province is one of the regions that contribute the most to the production of rice, corn, and cacao. The residues of these crops increase as production increases. The potential availability of the residue was calculated on the basis of the amount of agricultural product and the availability of unutilized residues. The estimated potential energy and collected data were processed and combined with converted factors, such as the yield per hectare and the calorific value, taking into account another purpose, the use of domestic residues for animal feed. Paddy straw, corn straw, and corn cobs had the highest percentage of residue availabilities, 85.91%, 82.26%, and 88.25%, respectively. In addition, the WNT regency has a rich diversity of agricultural residues from superior commodities such as rice, corn, coffee, coconut and cacao. The calculation of the total heating value (THV) of the agricultural residue available reached up to 42.4 PJ. Furthermore, the use of biomass for bioenergy resources is promising, particularly for the WNT region, with the potential for unused agricultural residues. The dependence on unsustainable energy, such as coal and fossil fuel, can be reduced by deploying and developing energy production from biomass use. Therefore, the potential for bioenergy generation and the availability of biomass can be developed for sustainable agriculture and energy management.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 11","pages":"1405-1414"},"PeriodicalIF":5.6,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The good, the bad, and the future: Systematic review identifies best use of biomass to meet air quality and climate policies in California","authors":"Peter Freer-Smith,&nbsp;Jack H. Bailey-Bale,&nbsp;Caspar L. Donnison,&nbsp;Gail Taylor","doi":"10.1111/gcbb.13101","DOIUrl":"https://doi.org/10.1111/gcbb.13101","url":null,"abstract":"<p>California has large and diverse biomass resources and provides a pertinent example of how biomass use is changing and needs to change, in the face of climate mitigation policies. As in other areas of the world, California needs to optimize its use of biomass and waste to meet environmental and socioeconomic objectives. We used a systematic review to assess biomass use pathways in California and the associated impacts on climate and air quality. Biomass uses included the production of renewable fuels, electricity, biochar, compost, and other marketable products. For those biomass use pathways recently developed, information is available on the effects—usually beneficial—on greenhouse gas (GHG) emissions, and there is some, but less, published information on the effects on criteria pollutants. Our review identifies 34 biomass use pathways with beneficial impacts on either GHG or pollutant emissions, or both—the “good.” These included combustion of forest biomass for power and conversion of livestock-associated biomass to biogas by anaerobic digestion. The review identified 13 biomass use pathways with adverse impacts on GHG emissions, criteria pollutant emissions, or both—the “bad.” Wildfires are an example of one out of eight pathways which were found to be bad for both climate and air quality, while only two biomass use pathways reduced GHG emissions relative to an identified counterfactual but had adverse air quality impacts. Issues of high interest for the “future” included land management to reduce fire risk, future policies for the dairy industries, and full life-cycle analysis of biomass production and use.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 11","pages":"1312-1328"},"PeriodicalIF":5.6,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50142320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate cooling benefits of cellulosic bioenergy crops from elevated albedo","authors":"Cheyenne Lei,&nbsp;Jiquan Chen,&nbsp;G. Philip Robertson","doi":"10.1111/gcbb.13098","DOIUrl":"https://doi.org/10.1111/gcbb.13098","url":null,"abstract":"<p>Changes in land surface albedo can alter ecosystem energy balance and potentially influence climate. We examined the albedo of six bioenergy cropping systems in southwest Michigan USA: monocultures of energy sorghum (<i>Sorghum bicolor</i>), switchgrass (<i>Panicum virgatum</i> L.), and giant miscanthus (<i>Miscanthus</i> × <i>giganteus)</i>, and polycultures of native grasses, early successional vegetation, and restored prairie. Direct field measurements of surface albedo (<i>α</i>_s) from May 2018 through December 2020 at half-hourly intervals in each system quantified the magnitudes and seasonal differences in albedo (∆_<i>α</i>) and albedo-induced radiative forcing (RF_∆<i>α</i>). We used a nearby forest as a historical native cover type to estimate reference albedo and RF_∆<i>α</i> change upon original land use conversion, and a continuous no-till maize (<i>Zea mays L</i>.) system as a contemporary reference to estimate change upon conversion from annual row crops. Annually, <i>α</i>_s differed significantly (<i>p</i> &lt; 0.05) among crops in the order: early successional (0.288 ± 0.012SE) &gt;&gt; miscanthus (0.271 ± 0.009) ≈ energy sorghum (0.270 ± 0.010) ≥ switchgrass (0.265 ± 0.009) ≈ restored prairie (0.264 ± 0.012) &gt; native grasses (0.259 ± 0.010) &gt; maize (0.247 ± 0.010). Reference forest had the lowest annual <i>α</i>_s (0.134 ± 0.003). Albedo differences among crops during the growing season were also statistically significant, with growing season <i>α</i>_s in perennial crops and energy sorghum on average ~20% higher (0.206 ± 0.003) than in no-till maize (0.184 ± 0.002). Average non-growing season (NGS) <i>α</i>_s (0.370 ± 0.020) was much higher than growing season <i>α</i>_s (0.203 ± 0.003) but these NGS differences were not significant. Overall, the original conversion of reference forest and maize landscapes to perennials provided a cooling effect on the local climate (RF_{<i>αMAIZE</i>}: −3.83 ± 1.00 W m⁻²; RF_{<i>αFOREST</i>}: −16.75 ± 3.01 W m⁻²). Significant differences among cropping systems suggest an additional management intervention for maximizing the positive climate benefit of bioenergy crops, with cellulosic crops on average ~9.1% more reflective than no-till maize, which itself was about twice as reflective as the reference forest.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 11","pages":"1373-1386"},"PeriodicalIF":5.6,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50153792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating perennial biomass crops into crop rotations: How to remove miscanthus and switchgrass without glyphosate","authors":"Eva Lewin,&nbsp;Andreas Kiesel,&nbsp;Elena Magenau,&nbsp;Iris Lewandowski","doi":"10.1111/gcbb.13099","DOIUrl":"https://doi.org/10.1111/gcbb.13099","url":null,"abstract":"<p>Perennial energy grasses have gained attention in recent years as a promising resource for the bioeconomy because of their benign environmental profile, high stress tolerance, high biomass yields and low input requirements. Currently, strong breeding efforts are being made to extend the range of commercially available miscanthus and switchgrass genotypes. In order to foster farmers' acceptance of these crops, and especially of novel hybrids, more information is required about how they can be efficiently integrated into cropping rotations, how they can be removed at the end of their productive lifespan, and what effect they have on subsequently grown crops. Farmers in Europe are meanwhile increasingly constrained in the methods available to them to remove these crops, and there is a risk that the herbicide glyphosate, which has been used in many studies to remove them, will be banned in coming years. This study looks at the removal of seven-year-old stands of miscanthus and switchgrass over 1 year at an experimental site in Southern-Germany. Three novel miscanthus genotypes were studied, alongside one variety of switchgrass, and the impact of each crop's removal on the yield of maize grown as a follow-on crop was examined. A combination of soil tillage and grass herbicides for maize cultivation was successful in controlling miscanthus regrowth, such that yields of maize grown after miscanthus did not differ significantly from yields of maize grown in monoculture rotation (18.1 t dry biomass ha⁻¹). Yields of maize grown after switchgrass (14.4 t dry biomass ha⁻¹) were significantly lower than maize in monoculture rotation caused by insufficient control of switchgrass regrowth by the applied maize herbicide. Although some regrowth of miscanthus and switchgrass was observed in the follow-on crop maize, complete eradication of both crops was achieved by subsequent winter wheat cultivation.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 11","pages":"1387-1404"},"PeriodicalIF":5.6,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genome-wide association and genomic prediction for yield and component traits of Miscanthus sacchariflorus","authors":"Joyce N. Njuguna,&nbsp;Lindsay V. Clark,&nbsp;Alexander E. Lipka,&nbsp;Kossonou G. Anzoua,&nbsp;Larisa Bagmet,&nbsp;Pavel Chebukin,&nbsp;Maria S. Dwiyanti,&nbsp;Elena Dzyubenko,&nbsp;Nicolay Dzyubenko,&nbsp;Bimal Kumar Ghimire,&nbsp;Xiaoli Jin,&nbsp;Douglas A. Johnson,&nbsp;Hironori Nagano,&nbsp;Junhua Peng,&nbsp;Karen Koefoed Petersen,&nbsp;Andrey Sabitov,&nbsp;Eun Soo Seong,&nbsp;Toshihiko Yamada,&nbsp;Ji Hye Yoo,&nbsp;Chang Yeon Yu,&nbsp;Hua Zhao,&nbsp;Stephen P. Long,&nbsp;Erik J. Sacks","doi":"10.1111/gcbb.13097","DOIUrl":"https://doi.org/10.1111/gcbb.13097","url":null,"abstract":"<p>Accelerating biomass improvement is a major goal of <i>Miscanthus</i> breeding. The development and implementation of genomic-enabled breeding tools, like marker-assisted selection (MAS) and genomic selection, has the potential to improve the efficiency of <i>Miscanthus</i> breeding. The present study conducted genome-wide association (GWA) and genomic prediction of biomass yield and 14 yield-components traits in <i>Miscanthus sacchariflorus</i>. We evaluated a diversity panel with 590 accessions of <i>M. sacchariflorus</i> grown across 4 years in one subtropical and three temperate locations and genotyped with 268,109 single-nucleotide polymorphisms (SNPs). The GWA study identified a total of 835 significant SNPs and 674 candidate genes across all traits and locations. Of the significant SNPs identified, 280 were localized in mapped quantitative trait loci intervals and proximal to SNPs identified for similar traits in previously reported <i>Miscanthus</i> studies, providing additional support for the importance of these genomic regions for biomass yield. Our study gave insights into the genetic basis for yield-component traits in <i>M. sacchariflorus</i> that may facilitate marker-assisted breeding for biomass yield. Genomic prediction accuracy for the yield-related traits ranged from 0.15 to 0.52 across all locations and genetic groups. Prediction accuracies within the six genetic groupings of <i>M. sacchariflorus</i> were limited due to low sample sizes. Nevertheless, the Korea/NE China/Russia (<i>N</i> = 237) genetic group had the highest prediction accuracy of all genetic groups (ranging 0.26–0.71), suggesting that with adequate sample sizes, there is strong potential for genomic selection within the genetic groupings of <i>M. sacchariflorus</i>. This study indicated that MAS and genomic prediction will likely be beneficial for conducting population-improvement of <i>M. sacchariflorus</i>.</p>","PeriodicalId":55126,"journal":{"name":"Global Change Biology Bioenergy","volume":"15 11","pages":"1355-1372"},"PeriodicalIF":5.6,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcbb.13097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50125411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}