您好，欢迎访问四川省农业科学院 机构知识库！

Transcriptome and hormones metabolome joint analyses reveal the key molecular mechanism of Sweetpotato storage roots sprouting

文献类型： 外文期刊

作者： Ding, Fan 1 ; Zou, Xue 3 ; Fan, Heling 3 ; Rao, Li-ping 3 ; Sun, Jian 1 ; Li, Qiang 1 ;

作者机构： 1.Jiangsu Normal Univ, Sch Life Sci, Xuzhou 221116, Jiangsu, Peoples R China

2.Minist Agr & Rural Affairs, Xuzhou Inst Agr Sci Jiangsu Xuhuai Dist, Key Lab Biol & Genet Breeding Sweetpotato, Xuzhou 221131, Peoples R China

3.Mianyang Acad Agr Sci, Crop Characterist Resources Creat & Utilizat Key L, Mianyang 621023, Sichuan, Peoples R China

关键词： Sweetpotato; Storage roots sprouting; Transcriptome; Hormones metabolite

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.8； 五年影响因子：5.4 ）

ISSN： 1471-2229

年卷期： 2025 年 25 卷 1 期

页码：

收录情况： SCI

摘要： Sprouting ability is an important indicator for evaluating the production performance of sweetpotato. However, the storage roots sprouting ability varies among different varieties. Currently, research on the sweetpotato storage roots sprouting (SPSRS) mainly focuses on physiology, rarely studies on the key metabolism and regulatory genes during the sprouting process. In this study, we compared transcriptomes and hormone metabolites in sprout buds of two sweetpotato varieties with contrasting sprouting abilities (strong-sprouting vs. late-sprouting) at 0 and 3 days post-harvest. In the SPSRS process of strong-sprouting variety (0d_vs_3d), a total of 2902 differentially expressed genes (DEGs), including 2411 up-regulated and 491 down-regulated genes were identified. But they were detected only, 45 up-regulated genes and 126 down-regulated genes between 0d and 3d of late-sprouting variety. Gene Ontology (GO) analysis showed that the DEGs between 0d and 3d in strong-sprouting variety and late-sprouting variety were mainly related to photosynthesis, light harvesting (GO:0009765), photosystem II (GO:0009523), and chlorophyll-binding (GO:0016168). In the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, DEGs in strong-sprouting variety were mainly associated with photosynthesis-antenna proteins. Both GO analysis and KEGG analysis indicated that DEGs in strong-sprouting variety (0d_vs_3d) were primarily related to photosynthesis. Hormone metabolites detection results showed that low abscisic acid (ABA) concentrations are crucial for SPSRS, while high indole-3-acetic acid (IAA) concentrations play a promoting role. Gibberellins (GAs) and cytokinins (CKs) are not key hormones for SPSRS. During the SPSRS process, IbGA2ox, IbGA20ox, and IbGA3ox were involved in regulation of GAs, while IbAMI1 was involved in regulation of IAA, and IbCYP707A1 and IbUGT73B2 were involved in regulation of ABA. Our study results also suggest that IbCYP707A1 is a key gene for SPSRS.

  • 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：四川省农业科学院

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