Crop Science最新文献_第2页

Optimizing canola production in the Northern Great Plains by leveraging genotype × environment × management synergies 利用基因型×环境×管理协同效应优化大平原北部油菜生产

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-11 DOI: 10.1002/csc2.70115

Brian L. Beres, Zhijie Wang, F. Craig Stevenson, Charles M. Geddes, Breanne D. Tidemann, Hiroshi Kubota, William E. May, Ramona M. Mohr

{"title":"Optimizing canola production in the Northern Great Plains by leveraging genotype × environment × management synergies","authors":"Brian L. Beres, Zhijie Wang, F. Craig Stevenson, Charles M. Geddes, Breanne D. Tidemann, Hiroshi Kubota, William E. May, Ramona M. Mohr","doi":"10.1002/csc2.70115","DOIUrl":"https://doi.org/10.1002/csc2.70115","url":null,"abstract":"Management practices and cultivars for canola (Brassica napus L.) have evolved for seeding and harvest management systems including the adoption of straight-cutting (S/C) over windrowing. We explored how manipulations to seeding rate, pod shatter reduction hybrid, and harvest method alter canola seed yield and quality. An experiment was conducted at five locations across the Canadian Prairies between 2018 and 2022, consisting of two pod shatter reduction hybrids with contrasting growth phenology sown at densities of 60, 120, and 180 seeds m−2, and subjected to either windrowing at 60% and 90% seed color change (SCC), or S/C at 10% and 5% seed moisture. Irrespective of hybrid choice or harvest management, densities of 120 and 180 seeds m−2 provided high and stable yield relative to 60 seeds m−2. Seed losses were minimal for both hybrids, but the late-maturing cultivar expressed higher seed yield and oil concentration. Straight-cutting at 10% seed moisture achieved the highest yields for both hybrids, but delays in S/C timing reduced its advantage over windrowing at 90% SCC. Yield components such as seed number and seed weight on secondary branches became critical to achieve high yields at lower seeding densities when environmental stress was low. While reducing seeding densities to cut costs can be tempting, the highest and most stable yields were achieved with a late-maturing hybrid, sown at 120 seeds m−2 and managed with S/C at harvest. This study provides insights into how seeding density and harvest method interact to affect canola yield within a genetic × environment × management framework.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic parameters and indirect selection of elite lines for efficiency in symbiotic nitrogen fixation in black common bean 黑豆共生固氮效率优良系的遗传参数及间接选择

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-10 DOI: 10.1002/csc2.70112

Nayana Valéria Costa, Patrícia Guimarães Santos Melo, Helton Santos Pereira, Renato Gomide de Sousa, Enderson Petronio de Brito Ferreira, Adriano Moreira Knupp, Leonardo Cunha Melo

{"title":"Genetic parameters and indirect selection of elite lines for efficiency in symbiotic nitrogen fixation in black common bean","authors":"Nayana Valéria Costa, Patrícia Guimarães Santos Melo, Helton Santos Pereira, Renato Gomide de Sousa, Enderson Petronio de Brito Ferreira, Adriano Moreira Knupp, Leonardo Cunha Melo","doi":"10.1002/csc2.70112","DOIUrl":"https://doi.org/10.1002/csc2.70112","url":null,"abstract":"This study aimed to evaluate whether managing populations and progenies of black common bean (Phaseolus vulgaris L.) in exclusive symbiotic nitrogen fixation (SNF) systems, which refer to environments where the primary nitrogen source in the soil is the SNF, is efficient for selecting lines with high symbiotic performance, using grain yield as a selection criterion, and to verify the relationship between agronomic- and SNF-related traits. A total of 76 black common bean lines from a single population and five checks were evaluated during the winter seasons of 2021 and 2022 under SNF systems. The experimental design was a 9 × 9 triple lattice. Evaluated traits included yield, 100-seed weight, and grain appearance. The top 10 and bottom 10 lines were selected based on grain yield in the field and evaluated with rhizobia inoculation in two greenhouse trials with five checks, using a randomized block design with four replications. Traits assessed included chlorophyll content, shoot and root dry weight, nodule number, nodule dry weight, and specific nodule weight. Genetic variability among the lines allowed for the selection of genotypes with high symbiotic performance. Significant differences were found between the groups of top and bottom lines for specific nodule weight, indicating its potential as a selection indicator. Significant correlations were found among the traits. Specific nodule weight, chlorophyll content, and shoot dry weight were identified as key factors for the indirect selection of genotypes with better symbiotic performance. Eight lines were selected for advanced trials to develop black common bean cultivars for SNF.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Clegg and TruFirm surface hardness for predicting tennis ball bounce standards on grass courts under match play 用Clegg和TruFirm表面硬度预测草地网球在比赛中的弹跳标准的比较

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-10 DOI: 10.1002/csc2.70109

J. S. Ebdon, J. Lu, M. DaCosta

{"title":"Comparison of Clegg and TruFirm surface hardness for predicting tennis ball bounce standards on grass courts under match play","authors":"J. S. Ebdon, J. Lu, M. DaCosta","doi":"10.1002/csc2.70109","DOIUrl":"https://doi.org/10.1002/csc2.70109","url":null,"abstract":"Participants playing tennis have increased by 33% since 2020. Vertical ball bounce (BB) ≥ 80% relative to concrete is the standard for all courts. The 0.5-kg Clegg impact soil tester (CIST) measures surface hardness (gravities, g) and is the standard for predicting tennis BB. No published research is available for critical CIST values to satisfy BB standards. TruFirm, used in golf, measures deformation depth (mm) and shows potential to relate to tennis BB as an alternative to CIST. To that end, tennis BB and 0.5-kg CIST were investigated over several years on cool-season turf species at the UMass Troll Turf Research Center under tennis match play. Published paired CIST and BB (n = 454) were combined with 3 years of current paired data (n = 1870) to assess BB and CIST. TruFirm and BB (n = 1276) were also compared. Regression models were developed for CIST and TruFirm to establish statistically derived BB standards. Field validation (model predicted vs. observed BB) for TruFirm and CIST was tested (n = 1254). The CIST device was more effective in predicting tennis BB based on r2-values (=0.45), validation r2 (=0.53), and with a smaller statistical bias (<1 SE) compared to TruFirm (r2-values ranging from 0.27 to 0.41), validation r2 (=0.40) with a larger statistical bias (>1 SE). Hardness of 150–170 g using CIST and TruFirm values of 5.8–9.6 mm were statistically derived (95% confidence interval) values for BB standards. TruFirm was not as effective as CIST with two to five times the bias in predicting tennis BB. Only 13.7% of all BB impacts (318 of 2326) satisfied ≥80% concrete standard. Similarly, 14.5% of all CIST impacts (≥150 g) closely approximated BB standards.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alternatives to colchicine for obtaining doubled haploids in tropical white corn 秋水仙碱在热带白玉米中获得双倍单倍体的替代品

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70110

Bruno Figueiró Fregonezi, Iran de Azevedo Duarte, Juliana Moraes Machado de Oliveira, Vitor Joaquim de Lucena, Maria Eduarda Alves de Oliveira, João Otavio Gonçalves dos Santos, Lucas Alves Camilo, Josué Maldonado Ferreira

{"title":"Alternatives to colchicine for obtaining doubled haploids in tropical white corn","authors":"Bruno Figueiró Fregonezi, Iran de Azevedo Duarte, Juliana Moraes Machado de Oliveira, Vitor Joaquim de Lucena, Maria Eduarda Alves de Oliveira, João Otavio Gonçalves dos Santos, Lucas Alves Camilo, Josué Maldonado Ferreira","doi":"10.1002/csc2.70110","DOIUrl":"https://doi.org/10.1002/csc2.70110","url":null,"abstract":"Colchicine is a widely used and effective agent for producing doubled haploid inbred lines in maize. However, its high toxicity and cost have prompted the search for safer and more economical alternatives for chromosome doubling. This study aimed to evaluate the effectiveness of pronamide and amiprophos-methyl solutions as alternatives to colchicine for chromosome doubling in tropical white corn (Zea mays L.), to identify the potential for spontaneous chromosomal doubling in tropical white maize populations, and to compare the haploid induction rates of three tropicalized inducer lines (CIM2GTAIL-P1, CIM2GTAIL-P2, and CIM2GTAIL-P3) along with their three hybrid combinations in crosses with tropical white corn. Eight populations of white corn were pollinated by six inducer genotypes, and the haploid induction rates were estimated. At the V2 stage, the roots of the haploid seedlings were washed and immersed in four treatments for chromosome doubling: a negative control with water, an amiprofos-methyl and pronamide solution, a colchicine solution, and a pronamide solution. Parameters such as self-pollination rate, self-pollination efficiency, survival, reproduction, and overall success were estimated. The amiprofos-methyl and pronamide treatment proved to be an effective alternative for the production of doubled haploid lines in tropical white corn, successfully replacing the use of colchicine. The tropical white corn populations presented spontaneous chromosome doubling rates ranging from 7.9% to 38.3%. The CIM2GTAIL-P1 × CIM2GTAIL-P2 hybrid demonstrated the highest haploid induction rate, with an average of 12.9%.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic evaluation of interspecific hybrids between a sexual synthetic autotetraploid P. plicatulum × P. aff. wrightii apomictic tetraploid, of the Plicatula group of Paspalum 雀稗雌雄合成同源四倍体P. plicatulum与P. af . wright无融合四倍体种间杂交的遗传评价

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70118

Patricia E. Novo, Sabina F. Novo, Camilo L. Quarin, Francisco Espinoza

{"title":"Genetic evaluation of interspecific hybrids between a sexual synthetic autotetraploid P. plicatulum × P. aff. wrightii apomictic tetraploid, of the Plicatula group of Paspalum","authors":"Patricia E. Novo, Sabina F. Novo, Camilo L. Quarin, Francisco Espinoza","doi":"10.1002/csc2.70118","DOIUrl":"https://doi.org/10.1002/csc2.70118","url":null,"abstract":"Paspalum wrightii Hitchc. & Chase, of the Plicatula group of Paspalum, is characterized by vigorous indefinite rhizomes and erect stems. It grows in wet, roadside ditches or periodically flooded areas. It is a multiploid species with 2n = 20 diploid and 2n = 40 tetraploid chromosomes. Cytoembryological reports indicate that the diploid cytotype reproduces sexually, while a representative of the tetraploid cytotype is facultatively apomictic with some potential to generate siblings through sexual means. One botanically unclassified species resembling P. wrightii, named herein P. aff. wrightii, was collected in this geographic region. This accession was determined to be facultative apomictic and was used as the male parent in crossing with a colchicine-induced sexual autotetraploid genotype of Paspalum plicatulum Michx., resulting in 28 interspecific hybrids. The meiotic chromosome pairing behavior of both parents and their hybrids was primarily bivalent and quadrivalent, indicating that the tetraploid P. aff. wrightii is a segmental alloploidy. This was supported by the chromosome-pairing behavior in the hybrids recovered when the accession was crossed with the induced autotetraploid P. plicatulum. The P. plicatulum × P. aff. wrightii hybrids segregated by sexual and apomictic reproductive modes. In general, most interspecific hybrids inherited self-incompatibility from the female parent and others had very low fertility. The presence of sexual and apomictic hybrids in the progeny suggests that gene transfer through hybridization is a feasible tool in breeding programs for forage grass species in the Plicatula group.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantification of dollar spot inoculum (Clarireedia spp.) in bentgrass clippings using droplet digital polymerase chain reaction (ddPCR) 用液滴数字聚合酶链反应（ddPCR）定量测定弯草剪枝中的斑点菌（Clarireedia spp.）

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70121

Krishna Ghimire, Yonghyun Kim, Jinyoung Y. Barnaby, Scott E. Warnke

{"title":"Quantification of dollar spot inoculum (Clarireedia spp.) in bentgrass clippings using droplet digital polymerase chain reaction (ddPCR)","authors":"Krishna Ghimire, Yonghyun Kim, Jinyoung Y. Barnaby, Scott E. Warnke","doi":"10.1002/csc2.70121","DOIUrl":"https://doi.org/10.1002/csc2.70121","url":null,"abstract":"Dollar spot, caused by the fungal pathogen Clarireedia jacksonii, is one of the most economically damaging and globally prevalent turfgrass diseases. Accurate assessment of cultivar resistance is critical for breeding programs and effective disease management. However, evaluating resistance is challenged by the lack of precise tools to quantify pathogen load under field conditions. In this study, we developed and validated a highly sensitive droplet digital polymerase chain reaction (ddPCR) assay for quantifying C. jacksonii DNA in clipping samples collected from three creeping bentgrass cultivars (007XL, Penncross, Oakley) and one colonial bentgrass cultivar (Musket) grown under natural infection in the National Turfgrass Evaluation Program (NTEP) Fairway trial in Maryland. The ddPCR assay, paired with newly designed primers, reliably detected C. jacksonii DNA at concentrations as low as 1 × 10−14 g without requiring standard curves. A strong positive correlation was observed between C. jacksonii DNA quantity and field-assessed disease severity. Notably, resistant cultivars maintained relatively low pathogen levels and delayed symptom development during early-season epidemics, whereas the susceptible cultivar, Penncross, exhibited higher early-season DNA levels and two distinct epidemic cycles. These findings suggest that resistant cultivars may either suppress early C. jacksonii buildup or tolerate higher pathogen loads before symptom onset. This study demonstrates the utility of ddPCR as a precise, field-applicable tool for monitoring C. jacksonii dynamics, offering critical insights for improving cultivar selection, optimizing fungicide timing, and enhancing sustainable disease management strategies in turfgrass systems.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomass, stalk, grain, and root crown characteristics of silage maize hybrids interseeded with alfalfa 青贮玉米与苜蓿杂交的生物量、茎秆、籽粒和根冠特性

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-08 DOI: 10.1002/csc2.70105

John H. Grabber, Claire P. Northup

{"title":"Biomass, stalk, grain, and root crown characteristics of silage maize hybrids interseeded with alfalfa","authors":"John H. Grabber, Claire P. Northup","doi":"10.1002/csc2.70105","DOIUrl":"https://doi.org/10.1002/csc2.70105","url":null,"abstract":"Adoption of alfalfa (Medicago sativa L.)–maize (Zea mays L.) intercropping in cold temperate regions is limited in part by reduced forage mass of silage maize. A 2-year trial in Wisconsin quantified the impact of interseeding alfalfa immediately after maize planting on biomass, stalk, grain, and root characteristics of 10 hybrids no-till planted in May. Soil moisture and plant traits were assessed during crop growth. Maize was harvested in September and then root crowns were dug and phenotyped. Interseeding reduced forage biomass by 18% and 27% in hybrid groups classified as having a small or large reduction in biomass production in response to interseeding, and by 16% in 2021 and 29% in 2022 relative to solo-seeded maize. Biomass of solo-seeded maize was not affected by hybrid group or year. Interseeding with alfalfa reduced dry matter concentration, N status, and development of stalks, grain, and roots of maize. Differences between cropping systems for plant traits were greater in 2022 when dry soil restricted growth of interseeded maize to a greater degree than solo-seeded maize. When interseeded, hybrids in the small biomass reduction group had greater kernel counts, plant height, light absorption, early season N status, and suffered less depression in dry matter concentration at harvest than hybrids in the large biomass reduction group. Our results suggest hybrids can differ in their suitability for intercropping with alfalfa.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Postharvest anthracnose disease in mango (Mangifera indica L.) fruit: Sustainable alternatives for the control 芒果（Mangifera indica L.）果实采后炭疽病：控制的可持续替代品

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-07 DOI: 10.1002/csc2.70114

引用次数: 0

Controlled-release nitrogen application mitigated soil ammonia volatilization without compromising crop yields: a case study in Sichuan Basin paddy soil 控释氮肥在不影响作物产量的情况下减轻了土壤氨挥发：以四川盆地水稻土为例

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-06 DOI: 10.1002/csc2.70108

Xinyue Li, Jingyue Liang, Bing Li, Yunsong Chen, Xiaoyan Tang, Rong Huang, Changquan Wang

{"title":"Controlled-release nitrogen application mitigated soil ammonia volatilization without compromising crop yields: a case study in Sichuan Basin paddy soil","authors":"Xinyue Li, Jingyue Liang, Bing Li, Yunsong Chen, Xiaoyan Tang, Rong Huang, Changquan Wang","doi":"10.1002/csc2.70108","DOIUrl":"https://doi.org/10.1002/csc2.70108","url":null,"abstract":"Basal application of controlled-release urea (CRU) combined with conventional urea has been proposed to better match the temporal nitrogen (N) demand of crops, reducing fertilization costs and offering greater practical applicability. Ammonia (NH3) volatilization is considered a major pathway of N loss in paddy, yet its response to CRU remains unclear. To evaluate the effects of partially substituting urea with CRU on NH3 volatilization and agronomic performance, field experiments were conducted in rice (Oryza sativa L.)–wheat (Triticum aestivum L.) and rice–rapeseed (Brassica napus L.) rotation with different CRU substitution rates (0%, 10%, 20%, 40%, 80%, and 100%). Results showed that the 40%–100% CRU treatments effectively decreased surface water NH4+-N content and cumulative NH3 volatilization compared to other fertilization treatments. In particular, compared with other treatments, the 40% CRU treatment significantly reduced the ratio of cumulative NH3 volatilization to total N input to 8.4% in the rice–wheat rotation. In the rice–rapeseed rotation, the 40% CRU treatment increased grain yield, partial factor productivity of nitrogen, and apparent N-fertilizer utilization efficiency. In the rice–wheat rotation, the 40% CRU treatment produced the tallest rice plants (52.71 cm), while in the rice–rapeseed rotation, it achieved the highest growth rate (25.97 kg hm−2 day−1). Their results demonstrate that replacing 40% of urea with CRU could effectively reduce NH3 volatilization while simultaneously enhancing rice N accumulation and agronomic performance, particularly in rice–wheat rotation system in the Chengdu Plain.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic architecture of shade tolerance in soybean (Glycine max L. Merr.) revealed by genome-wide association study 大豆（Glycine max L. Merr.）耐荫性遗传结构的全基因组关联研究

IF 2 3区农林科学

Crop Science Pub Date : 2025-07-06 DOI: 10.1002/csc2.70107

Fengyi Zhang, Jiangyuan Xu, Weidong Wang, Xiulin Liu, Dongdong He, Bixian Zhang, Baolin Liu, Sobhi F. Lamlom, Ahmed M. Abdelghany, Huilong Hong, Yinghui Li, Ren Honglei, Lijuan Qiu

{"title":"Genetic architecture of shade tolerance in soybean (Glycine max L. Merr.) revealed by genome-wide association study","authors":"Fengyi Zhang, Jiangyuan Xu, Weidong Wang, Xiulin Liu, Dongdong He, Bixian Zhang, Baolin Liu, Sobhi F. Lamlom, Ahmed M. Abdelghany, Huilong Hong, Yinghui Li, Ren Honglei, Lijuan Qiu","doi":"10.1002/csc2.70107","DOIUrl":"https://doi.org/10.1002/csc2.70107","url":null,"abstract":"Shade tolerance is a critical trait for soybean [Glycine max (L.) Merr.] adaptation to intercropping systems. This study investigated the genetic architecture of shade response in soybean through genome-wide association analysis of 461 diverse accessions evaluated under both normal and shade conditions across two distinct environments in China (Heilongjiang and Inner Mongolia) in the 2022 season. Plant height (PH), main stem node number (MSNN), and pod number per plant (PODn) were assessed to characterize morphological responses to shade stress. Principal component analysis revealed that geographic location was the primary driver of phenotypic variation, explaining 57.4% of total variance. Shade treatment significantly increased PH while reducing MSNN and PODn across both locations, demonstrating classic shade avoidance syndrome traits. Genome-wide association study using 82,208 high-quality single-nucleotide polymorphisms (SNPs) identified 31 significant marker-trait associations (p < 6.0E-4) distributed across 14 chromosomes. Six SNPs were associated with MSNN, 20 with PODn, and five with PH. Notable stable associations included SNP Gm16_9640074 for pod number under normal conditions and Gm08_2576632 for PH under shade stress across both environments. The identification of both environment-specific and stable genetic loci demonstrates the complex genetic architecture underlying shade response in soybean. These findings provide valuable insights into the molecular mechanisms of shade tolerance and identify promising genetic markers for developing soybean varieties better adapted to intercropping systems, potentially enhancing sustainable agricultural practices in diverse agroecological zones.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0