大豆MYB转录因子的进化特征及功能研究进展OA
Research Progress on Evolutionary Characteristics and Functions of MYB Transcription Factors in Soybean
MYB(v-myb avian myeloblastosis viral oncogene homolog)转录因子是植物中高度保守、广泛分布的转录因子家族,在植物生长发育、次生代谢产物积累及逆境胁迫响应等过程中发挥关键调控作用.大豆作为典型的古多倍体,经历过两次全基因组多倍化事件,使其 MYB 基因家族在扩张模式、进化速率及旁系同源基因分化上具有独特性.与其他作物相比,大豆基因组编码更多 MYB 转录因子,其在大豆耐逆性、产量、品质及根瘤共生固氮中的功能已获得广泛证实.本文基于全基因组鉴定数据,系统综述了大豆 MYB 转录因子的进化特征,并全面总结其在非生物胁迫(盐碱、干旱、低温等)、生物胁迫及次生代谢调控中的生物学功能,为深入解析其分子调控机制及推进大豆遗传改良提供理论依据.
MYB(v-myb avian myeloblastosis viral oncogene homolog)transcription factors constitute a highly conserved and widely distributed gene family in plants,playing pivotal regulatory roles in plant growth and development,secondary metabolite accumulation,and stress responses.As a typical paleopolyploid plant,soybean underwent two major whole-genome duplication events,leading to unique evolutionary patterns in the expansion,evolutionary rate,and paralog divergence of the MYB gene family.Compared with other crops,soybean encodes a larger number of MYB transcription factors,whose functions in stress tolerance,yield,quality,and symbiotic nitrogen fixation have been well documented.Based on genome-wide identification data,this paper systematically reviews the evolutionary characteristics of soybean MYB transcription factors and comprehensively summarizes their regulatory roles in abiotic stresses(salinity,drought,low temperature,etc),biotic stresses,and secondary metabolism.This review provides theoretical insights for unraveling the molecular mechanisms underlying MYB-mediated regulation and accelerating genetic improvement of soybean.
孟凡梅;王英男;杨琴;袁翠平
吉林省农业科学院(中国农业科技东北创新中心)水稻研究所,吉林 公主岭 136100吉林省农业科学院(中国农业科技东北创新中心)大豆研究所,吉林 长春 130033吉林省农业科学院(中国农业科技东北创新中心)大豆研究所,吉林 长春 130033||吉林农业大学 农学院,吉林 长春 130118吉林省农业科学院(中国农业科技东北创新中心)大豆研究所,吉林 长春 130033
大豆MYB转录因子非生物胁迫生物胁迫次生代谢生长发育
soybeanMYB transcription factorabiotic stressbiotic stresssecondary metabolitesgrowth and development
《大豆科学》 2026 (3)
145-152,8
吉林省科技发展计划科技人才培养项目(20260601044RC).
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