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The Function of SD1 on Shoot Length and its Pyramiding Effect on Shoot Length and Plant Height in Rice (Oryza sativa L.). SD1对水稻(Oryza sativa L.)嫩枝长度的作用及其对嫩枝长度和株高的分层效应
IF 5.5 1区 农林科学
Rice Pub Date : 2024-03-25 DOI: 10.1186/s12284-024-00699-8
Jingfang Dong, Yamei Ma, Haifei Hu, Jian Wang, Wu Yang, Hua Fu, Longting Zhang, Jiansong Chen, Lian Zhou, Wenhui Li, Shuai Nie, Ziqiang Liu, Junliang Zhao, Bin Liu, Tifeng Yang, Shaohong Zhang
{"title":"The Function of SD1 on Shoot Length and its Pyramiding Effect on Shoot Length and Plant Height in Rice (Oryza sativa L.).","authors":"Jingfang Dong, Yamei Ma, Haifei Hu, Jian Wang, Wu Yang, Hua Fu, Longting Zhang, Jiansong Chen, Lian Zhou, Wenhui Li, Shuai Nie, Ziqiang Liu, Junliang Zhao, Bin Liu, Tifeng Yang, Shaohong Zhang","doi":"10.1186/s12284-024-00699-8","DOIUrl":"10.1186/s12284-024-00699-8","url":null,"abstract":"<p><p>Strong seedling vigor is imperative to achieve stable seedling establishment and enhance the competitiveness against weeds in rice direct seeding. Shoot length (SL) is one of the important traits associated with seedling vigor in rice, but few genes for SL have been cloned so far. In the previous study, we identified two tightly linked and stably expressed QTLs for SL, qSL-1f and qSL-1d by genome-wide association study, and cloned the causal gene (LOC_Os01g68500) underlying qSL-1f. In the present study, we identify LOC_Os01g66100 (i.e. the semidwarf gene SD1), a well-known gene controlling plant height (PH) at the adult-plant stage, as the causal gene underlying qSL-1d through gene-based haplotype analysis and knockout transgenic verification. By measuring the phenotypes (SL and PH) of various haplotypes of the two genes and their knockout lines, we found SD1 and LOC_ Os01g68500 controlled both SL and PH, and worked in the same direction, which provided the directly genetic evidence for a positive correlation between SL and PH combined with the analysis of SL and PH in the diverse natural population. Moreover, the knockout transgenic experiments suggested that SD1 had a greater effect on PH compared with LOC_ Os01g68500, but no significant difference in the effect on SL. Further investigation of the pyramiding effects of SD1 and LOC_Os01g68500 based on their haplotype combinations suggested that SD1 may play a dominant role in controlling SL and PH when the two genes coexist. In this study, the effect of SD1 on SL at the seedling stage is validated. In total, two causal genes, SD1 and LOC_ Os01g68500, for SL are cloned in our studies, which controlled both SL and PH, and the suitable haplotypes of SD1 and LOC_ Os01g68500 are beneficial to achieve the desired SL and PH in different rice breeding objectives. These results provide a new clue to develop rice varieties for direct seeding and provide new genetic resources for molecular breeding of rice with suitable PH and strong seedling vigor.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"21"},"PeriodicalIF":5.5,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140288897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Biofortified Rice Provides Rich Sakuranetin in Endosperm. 生物强化水稻在胚乳中提供丰富的樱草苷。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-03-02 DOI: 10.1186/s12284-024-00697-w
Yao Zhao, Jitao Hu, Zhongjing Zhou, Linying Li, Xueying Zhang, Yuqing He, Chi Zhang, Junmin Wang, Gaojie Hong
{"title":"Biofortified Rice Provides Rich Sakuranetin in Endosperm.","authors":"Yao Zhao, Jitao Hu, Zhongjing Zhou, Linying Li, Xueying Zhang, Yuqing He, Chi Zhang, Junmin Wang, Gaojie Hong","doi":"10.1186/s12284-024-00697-w","DOIUrl":"10.1186/s12284-024-00697-w","url":null,"abstract":"<p><p>Sakuranetin plays a key role as a phytoalexin in plant resistance to biotic and abiotic stresses, and possesses diverse health-promoting benefits. However, mature rice seeds do not contain detectable levels of sakuranetin. In the present study, a transgenic rice plant was developed in which the promoter of an endosperm-specific glutelin gene OsGluD-1 drives the expression of a specific enzyme naringenin 7-O-methyltransferase (NOMT) for sakuranetin biosynthesis. The presence of naringenin, which serves as the biosynthetic precursor of sakuranetin made this modification feasible in theory. Liquid chromatography tandem mass spectrometry (LC-MS/MS) validated that the seeds of transgenic rice accumulated remarkable sakuranetin at the mature stage, and higher at the filling stage. In addition, the panicle blast resistance of transgenic rice was significantly higher than that of the wild type. Specially, the matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) imaging was performed to detect the content and spatial distribution of sakuranetin and other nutritional metabolites in transgenic rice seeds. Notably, this genetic modification also did not change the nutritional and quality indicators such as soluble sugars, total amino acids, total flavonoids, amylose, total protein, and free amino acid content in rice. Meanwhile, the phenotypes of the transgenic plant during the whole growth and developmental periods and agricultural traits such as grain width, grain length, and 1000-grain weight exhibited no significant differences from the wild type. Collectively, the study provides a conceptual advance on cultivating sakuranetin-rich biofortified rice by metabolic engineering. This new breeding idea may not only enhance the disease resistance of cereal crop seeds but also improve the nutritional value of grains for human health benefits.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"19"},"PeriodicalIF":5.5,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10908774/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140013209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A Synthetic Microbiome Based on Dominant Microbes in Wild Rice Rhizosphere to Promote Sulfur Utilization 基于野生稻根瘤菌群的合成微生物群促进硫的利用
IF 5.5 1区 农林科学
Rice Pub Date : 2024-03-01 DOI: 10.1186/s12284-024-00695-y
Changji Wang, Jingjing Chang, Lei Tian, Yu Sun, Enze Wang, Zongmu Yao, Libo Ye, Hengfei Zhang, Yingnan Pang, Chunjie Tian
{"title":"A Synthetic Microbiome Based on Dominant Microbes in Wild Rice Rhizosphere to Promote Sulfur Utilization","authors":"Changji Wang, Jingjing Chang, Lei Tian, Yu Sun, Enze Wang, Zongmu Yao, Libo Ye, Hengfei Zhang, Yingnan Pang, Chunjie Tian","doi":"10.1186/s12284-024-00695-y","DOIUrl":"https://doi.org/10.1186/s12284-024-00695-y","url":null,"abstract":"<p>Sulfur (S) is one of the main components of important biomolecules, which has been paid more attention in the anaerobic environment of rice cultivation. In this study, 12 accessions of rice materials, belonging to two Asian rice domestication systems and one African rice domestication system, were used by shotgun metagenomics sequencing to compare the structure and function involved in S cycle of rhizosphere microbiome between wild and cultivated rice. The sulfur cycle functional genes abundances were significantly different between wild and cultivated rice rhizosphere in the processes of sulfate reduction and other sulfur compounds conversion, implicating that wild rice had a stronger mutually-beneficial relationship with rhizosphere microbiome, enhancing sulfur utilization. To assess the effects of sulfate reduction synthetic microbiomes, Comamonadaceae and Rhodospirillaceae, two families containing the genes of two key steps in the dissimilatory sulfate reduction, <i>aprA</i> and <i>dsrA</i> respectively, were isolated from wild rice rhizosphere. Compared with the control group, the dissimilatory sulfate reduction in cultivated rice rhizosphere was significantly improved in the inoculated with different proportions groups. It confirmed that the synthetic microbiome can promote the S-cycling in rice, and suggested that may be feasible to construct the synthetic microbiome step by step based on functional genes to achieve the target functional pathway. In summary, this study reveals the response of rice rhizosphere microbial community structure and function to domestication, and provides a new idea for the construction of synthetic microbiome.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"14 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140004051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Assessing the Genetic Diversity of Parents for Developing Hybrids Through Morphological and Molecular Markers in Rice (Oryza sativa L.). 通过水稻(Oryza sativa L.)的形态学和分子标记评估用于培育杂交种的亲本遗传多样性。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-24 DOI: 10.1186/s12284-024-00691-2
Rakkimuthu Nivedha, Swaminathan Manonmani, Thiyagarajan Kalaimagal, Muthurajan Raveendran, Shanmugam Kavitha
{"title":"Assessing the Genetic Diversity of Parents for Developing Hybrids Through Morphological and Molecular Markers in Rice (Oryza sativa L.).","authors":"Rakkimuthu Nivedha, Swaminathan Manonmani, Thiyagarajan Kalaimagal, Muthurajan Raveendran, Shanmugam Kavitha","doi":"10.1186/s12284-024-00691-2","DOIUrl":"10.1186/s12284-024-00691-2","url":null,"abstract":"<p><p>The advancement of hybrid technology plays a crucial role in addressing yield plateau and diminishing resources in rice cultivating regions. The knowledge of genetic diversity among parental lines is a prerequisite for effective hybrid breeding program. In the current study, a set of 66 parental lines was studied for diversity based on both morphological characters and microsatellite SSR markers. The genetic variability parameters unveiled that number of productive tillers per plant, single plant yield and hundred grain weight exhibited additive gene action. Mahalanobis D<sup>2</sup> statistics grouped the genotypes into ten clusters based on yield and grain traits. The principal component analysis identified four PCs with eigen value more than one accounting for 71.28% of cumulative variance. The polymorphic SSR markers produced 122 alleles among which the marker RM474 recorded the highest values for Polymorphic Information Content (0.83) and heterozygosity index (0.85). The genotypes were assembled in seven clusters based on jaccard distances using the Unweighted Pair Group method with Arithmetic Mean (UPGMA). The population structure divided the entire population into 3 subpopulations. In both clustering, there was difference in the assembling of genotypes, but, good performing genotypes identified through PCA were positioned in different clusters in both approaches. The genotypes CBSN 495 and CBSN 494 located in different clusters were identified as the potential restorers for high yielding and short duration hybrids. The hybridization among CRR Dhan 310, CRR Dhan 315, IR64 DRT, CB 17135 and WGL 347 can be performed to develop climate smart varieties with improved nutrition.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"17"},"PeriodicalIF":5.5,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10894128/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139944388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Heat Stress Responsive Aux/IAA Protein, OsIAA29 Regulates Grain Filling Through OsARF17 Mediated Auxin Signaling Pathway. 热胁迫响应性 Aux/IAA 蛋白 OsIAA29 通过 OsARF17 介导的叶绿素信号途径调节谷粒充实。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-19 DOI: 10.1186/s12284-024-00694-z
Zhanghao Chen, Wei Zhou, Xianyu Guo, Sheng Ling, Wang Li, Xin Wang, Jialing Yao
{"title":"Heat Stress Responsive Aux/IAA Protein, OsIAA29 Regulates Grain Filling Through OsARF17 Mediated Auxin Signaling Pathway.","authors":"Zhanghao Chen, Wei Zhou, Xianyu Guo, Sheng Ling, Wang Li, Xin Wang, Jialing Yao","doi":"10.1186/s12284-024-00694-z","DOIUrl":"10.1186/s12284-024-00694-z","url":null,"abstract":"<p><p>High temperature during grain filling considerably reduces yield and quality in rice, but its molecular mechanisms are not fully understood. We investigated the functions of a seed preferentially expressed Aux/IAA gene, OsIAA29, under high temperature-stress in grain filling using CRISPR/Cas9, RNAi, and overexpression. We observed that the osiaa29 had a higher percentage of shrunken and chalkiness seed, as well as lower 1000-grain weight than ZH11 under high temperature. Meanwhile, the expression of OsIAA29 was induced and the IAA content was remarkably reduced in the ZH11 seeds under high temperature. In addition, OsIAA29 may enhance the transcriptional activation activity of OsARF17 through competition with OsIAA21 binding to OsARF17. Finally, chromatin immunoprecipitation quantitative real-time PCR (ChIP-qPCR) results proved that OsARF17 regulated expression of several starch and protein synthesis related genes (like OsPDIL1-1, OsSS1, OsNAC20, OsSBE1, and OsC2H2). Therefore, OsIAA29 regulates seed development in high temperature through competition with OsIAA21 in the binding to OsARF17, mediating auxin signaling pathway in rice. This study provides a theoretical basis and gene resources for auxin signaling and effective molecular design breeding.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"16"},"PeriodicalIF":5.5,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10876508/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139906367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
OsNAC103, a NAC Transcription Factor, Positively Regulates Leaf Senescence and Plant Architecture in Rice. 一种 NAC 转录因子 OsNAC103 能积极调控水稻的叶片衰老和植株结构。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-15 DOI: 10.1186/s12284-024-00690-3
Lina Sun, Hanqin Xu, Juan Song, Xiaoying Yang, XinYi Wang, Haiyan Liu, Mengzhen Pang, Youchuan Hu, Qi Yang, Xiaotong Ning, Shanshan Liang, Siju Zhang, Weijiang Luan
{"title":"OsNAC103, a NAC Transcription Factor, Positively Regulates Leaf Senescence and Plant Architecture in Rice.","authors":"Lina Sun, Hanqin Xu, Juan Song, Xiaoying Yang, XinYi Wang, Haiyan Liu, Mengzhen Pang, Youchuan Hu, Qi Yang, Xiaotong Ning, Shanshan Liang, Siju Zhang, Weijiang Luan","doi":"10.1186/s12284-024-00690-3","DOIUrl":"10.1186/s12284-024-00690-3","url":null,"abstract":"<p><p>Leaf senescence, the last stage of leaf development, is essential for crop yield by promoting nutrition relocation from senescence leaves to new leaves and seeds. NAC (NAM/ATAF1/ATAF2/CUC2) proteins, one of the plant-specific transcription factors, widely distribute in plants and play important roles in plant growth and development. Here, we identified a new NAC member OsNAC103 and found that it plays critical roles in leaf senescence and plant architecture in rice. OsNAC103 mRNA levels were dramatically induced by leaf senescence as well as different phytohormones such as ABA, MeJA and ACC and abiotic stresses including dark, drought and high salinity. OsNAC103 acts as a transcription factor with nuclear localization signals at the N terminal and a transcriptional activation signal at the C terminal. Overexpression of OsNAC103 promoted leaf senescence while osnac103 mutants delayed leaf senescence under natural condition and dark-induced condition, meanwhile, senescence-associated genes (SAGs) were up-regulated in OsNAC103 overexpression (OsNAC103-OE) lines, indicating that OsNAC103 positively regulates leaf senescence in rice. Moreover, OsNAC103-OE lines exhibited loose plant architecture with larger tiller angles while tiller angles of osnac103 mutants decreased during the vegetative and reproductive growth stages due to the response of shoot gravitropism, suggesting that OsNAC103 can regulate the plant architecture in rice. Taken together, our results reveal that OsNAC103 plays crucial roles in the regulation of leaf senescence and plant architecture in rice.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"15"},"PeriodicalIF":5.5,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10869678/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139736052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity. 时间和酶浓度对桑戈德米糠水解物的影响:植物化学物质、抗氧化剂、氨基酸和细胞毒性。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-13 DOI: 10.1186/s12284-024-00692-1
Chakkapat Aenglong, Wanwipha Woonnoi, Supita Tanasawet, Wanwimol Klaypradit, Wanida Sukketsiri
{"title":"Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity.","authors":"Chakkapat Aenglong, Wanwipha Woonnoi, Supita Tanasawet, Wanwimol Klaypradit, Wanida Sukketsiri","doi":"10.1186/s12284-024-00692-1","DOIUrl":"10.1186/s12284-024-00692-1","url":null,"abstract":"<p><p>This study investigated the production of Sangyod rice bran hydrolysate (SYRB) from Sangyod rice, focusing on incubation times (1, 3, and 5 h) and alcalase enzyme concentrations (0, 0.7, and 1% v/v). The results demonstrated a concentration-dependent relationship: higher alcalase concentrations increased hydrolysate yield. Prolonged incubation, especially with alcalase, enhanced substrate breakdown, further increasing hydrolysate production. The degree of hydrolysis, reflecting peptide bond cleavage, depended on both incubation time and enzyme concentration, emphasizing the role of enzyme activity in efficiency. Moreover, color analysis (L*, a*, b*) and color difference (∆E) revealed intricate changes from enzymatic hydrolysis. Proximate composition analysis showed higher protein and lipid content with increased enzyme concentration and longer incubation times, whereas ash content varied with both factors. Hydrolysate powders exhibited higher moisture content than raw rice bran, indicating the impact of the hydrolysis process. The study also explored SYRB's antioxidant properties and cytotoxicity, which were sensitive to incubation time and alcalase concentration. Longer incubation increased DPPH scavenging activity, with the highest efficacy at 3 h. Meanwhile, ABTS scavenging displayed a delicate balance with alcalase concentration. The cytotoxicity study of SYRB revealed that all concentrations of SYRB were non-toxic to C2C12 cells, with cell viability values exceeding 70%.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"13"},"PeriodicalIF":5.5,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10861414/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139723857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Magnaporthe oryzae effector AvrPik-D targets a transcription factor WG7 to suppress rice immunity. Magnaporthe oryzae效应子AvrPik-D以转录因子WG7为靶标抑制水稻免疫。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-13 DOI: 10.1186/s12284-024-00693-0
Tao Yang, Linlin Song, Jinxian Hu, Luao Qiao, Qing Yu, Zonghua Wang, Xiaofeng Chen, Guo-Dong Lu
{"title":"Magnaporthe oryzae effector AvrPik-D targets a transcription factor WG7 to suppress rice immunity.","authors":"Tao Yang, Linlin Song, Jinxian Hu, Luao Qiao, Qing Yu, Zonghua Wang, Xiaofeng Chen, Guo-Dong Lu","doi":"10.1186/s12284-024-00693-0","DOIUrl":"10.1186/s12284-024-00693-0","url":null,"abstract":"<p><p>Rice blast, caused by the fungal pathogen Magnaporthe oryzae, is one of the most devastating diseases for rice crops, significantly affecting crop yield and quality. During the infection process, M. oryzae secretes effector proteins that help in hijacking the host's immune responses to establish infection. However, little is known about the interaction between the effector protein AvrPik-D and the host protein Pikh, and how AvrPik-D increases disease severity to promote infection. In this study, we show that the M. oryzae effector AvrPik-D interacts with the zinc finger-type transcription factor WG7 in the nucleus and promotes its transcriptional activity. Genetic removal (knockout) of the gene WG7 in transgenic rice enhances resistance to M. oryzae and also results in an increased burst of reactive oxygen species after treatments with chitin. In addition, the hormone level of SA and JA, is increased and decreased respectively in WG7 KO plants, indicating that WG7 may negatively mediate resistance through salicylic acid pathway. Conversely, WG7 overexpression lines reduce resistance to M. oryzae. However, WG7 is not required for the Pikh-mediated resistance against rice blast. In conclusion, our results revealed that the M. oryzae effector AvrPik-D targets and promotes transcriptional activity of WG7 to suppress rice innate immunity to facilitate infection.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"17 1","pages":"14"},"PeriodicalIF":5.5,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10864242/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139730429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Construction of a Female Sterility Maintaining System Based on a Novel Mutation of the MEL2 Gene 基于 MEL2 基因的新型突变构建雌性不育维持系统
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-04 DOI: 10.1186/s12284-024-00688-x
Xia Wang, Shuting Yuan, Changjian Wang, Wei Yan, Gang Xie, Cuifang Wang, Shijun Qiu, Jianxin Wu, Xing Wang Deng, Chunjue Xu, Xiaoyan Tang
{"title":"Construction of a Female Sterility Maintaining System Based on a Novel Mutation of the MEL2 Gene","authors":"Xia Wang, Shuting Yuan, Changjian Wang, Wei Yan, Gang Xie, Cuifang Wang, Shijun Qiu, Jianxin Wu, Xing Wang Deng, Chunjue Xu, Xiaoyan Tang","doi":"10.1186/s12284-024-00688-x","DOIUrl":"https://doi.org/10.1186/s12284-024-00688-x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Background</h3><p>Hybrid rice has significant yield advantage and stress tolerance compared with inbred rice. However, production of hybrid rice seeds requires extensive manual labors. Currently, hybrid rice seeds are produced by crosspollination of male sterile lines by fertile paternal lines. Because seeds from paternal lines can contaminate the hybrid seeds, mechanized production by mixed-seeding and mixed-harvesting is difficult. This problem can be solved if the paternal line is female sterile.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Here we identified a female infertile mutant named <i>h569</i> carrying a novel mutation (A<sub>1106</sub>G) in the <i>MEL2</i> gene that was previously reported to regulate meiosis entry both in male and female organs. <i>h569</i> mutant is female infertile but male normal, suggesting that MEL2 regulates meiosis entry in male and female organs through distinct pathways. The <i>MEL2</i> gene and <i>h569</i> mutant gave us tools to construct female sterility maintaining systems that can be used for propagation of female sterile lines. We connected the wild-type <i>MEL2</i> gene with pollen-killer gene <i>ZmAA1</i> and seed-marker gene <i>DsRed2</i> in one T-DNA cassette and transformed it into ZZH1607, a widely used restorer line. Transgenic line carrying a single transgene inserted in an intergenic region was selected to cross with <i>h569</i> mutant. F<sub>2</sub> progeny carrying homozygous A<sub>1106</sub>G mutation and hemizygous transgene displayed 1:1 segregation of fertile and infertile pollen grains and 1:1 segregation of fluorescent and non-fluorescent seeds upon self-fertilization. All of the non-fluorescent seeds generated female infertile plants, while the fluorescent seeds generated fertile plants that reproduced in the way as their previous generation.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>These results indicated that the female sterility maintaining system constructed in the study can be used to breed and propagate paternal lines that are female infertile. The application of this system will enable mechanized production of hybrid rice seed by using the mixed-seeding and mixed harvesting approach, which will significantly reduce the cost in hybrid rice seed production.</p>","PeriodicalId":21408,"journal":{"name":"Rice","volume":"1 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139677955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Correction: Phosphate Transporter OsPT4, Ubiquitinated by E3 Ligase OsAIRP2, Plays a Crucial Role in Phosphorus and Nitrogen Translocation and Consumption in Germinating Seed. 更正:磷酸盐转运体 OsPT4 被 E3 连接酶 OsAIRP2 泛素化,在发芽种子的磷和氮转运及消耗中发挥关键作用。
IF 5.5 1区 农林科学
Rice Pub Date : 2024-02-03 DOI: 10.1186/s12284-024-00689-w
Yafei Sun, Fang Zhang, Jia Wei, Ke Song, Lijuan Sun, Yang Yang, Qin Qin, Shiyan Yang, Zhouwen Li, Guohua Xu, Shubin Sun, Yong Xue
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