您好，欢迎访问河北省农林科学院 机构知识库！
河北省农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Genetic and transcriptome analyses reveal the candidate genes and pathways involved in the inactive shade-avoidance response enabling high-density planting of soybean

文献类型： 外文期刊

作者： Zhao, Jing 1 ; Shi, Xiaolei 1 ; Chen, Lei 2 ; Chen, Qiang 1 ; Tian, Xuan 3 ; Ai, Lijuan 1 ; Zhao, Hongtao 3 ; Yang, Chunyan 1 ; Yan, Long 1 ; Zhang, Mengchen 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Natl Soybean Improvement Ctr Shijiazhuang Sub Ctr, Minist Agr & Rural Affairs,Huang Huai Hai Key Lab, Shijiazhuang, Peoples R China

2.Yantai Univ, Sch Life Sci, Yantai, Peoples R China

3.Hebei Normal Univ, Coll Life Sci, Hebei Collaborat Innovat Ctr Cell Signaling, Key Lab Mol & Cellular Biol,Minist Educ, Shijiazhuang, Peoples R China

关键词： soybean; shade-avoidance syndrome; high-density planting; QTL- mapping; RNA-seq

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： High-density planting is a major way to improve crop yields. However, shade-avoidance syndrome (SAS) is a major factor limiting increased planting density. First Green Revolution addressed grass lodging problem by using dwarf/semi-dwarf genes. However, it is not suitable for soybean, which bear seeds on stalk and whose seed yield depends on plant height. Hence, mining shade-tolerant germplasms and elucidating the underlying mechanism could provide meaningful resources and information for high-yield breeding. Here, we report a high-plant density-tolerant soybean cultivar, JiDou 17, which exhibited an inactive SAS (iSAS) phenotype under high-plant density or low-light conditions at the seedling stage. A quantitative trait locus (QTL) mapping analysis using a recombinant inbred line (RIL) population showed that this iSAS phenotype is related to a major QTL, named shade-avoidance response 1 (qSAR1), which was detected. The mapping region was narrowed by a haplotype analysis into a 554 kb interval harboring 44 genes, including 4 known to be key regulators of the SAS network and 4 with a variance response to low-light conditions between near isogenic line (NIL) stems. Via RNA-seq, we identified iSAS-specific genes based on one pair of near isogenic lines (NILs) and their parents. The iSAS-specific genes expressed in the stems were significantly enriched in the "proteasomal protein catabolic" process and the proteasome pathway, which were recently suggested to promote the shade-avoidance response by enhancing PIF7 stability. Most iSAS-specific proteasome-related genes were downregulated under low-light conditions. The expression of genes related to ABA, CK, and GA significantly varied between the low- and normal-light conditions. This finding is meaningful for the cloning of genes that harbor beneficial variation(s) conferring the iSAS phenotype fixed in domestication and breeding practice.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河北省农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台