草业学报2024，Vol.33Issue(4)：135-153,19.DOI:10.11686/cyxb2023235
紫花苜蓿SAUR基因家族的鉴定及其在非生物胁迫中的表达模式研究
Identification of the alfalfa SAUR gene family and its expression pattern under abiotic stress
摘要
Abstract
SAUR(small auxin up-regulated RNA)is a category of auxin gene in plant early response,involved in a series of biological processes such as plant growth and development and abiotic stress response.The SAUR gene family has been systematically identified and analyzed in Arabidopsis thaliana,rice(Oryza sativa),cotton(Gossypium spp.)and other species,but the research on the SAUR gene family in alfalfa(Medicago sativa),the most important leguminous forage in the world,has not been carried out.In this study,a total of 433 MsSAUR gene family members were identified in the reference genome of alfalfa using bioinformatics methods,and their genome location,gene structure,promoter cis-acting elements and expression patterns in different tissues were analyzed.Meanwhile,using transcriptome data of alfalfa under different abiotic stresses,it was found that five MsSAUR gene family members responded to drought stress,11 responded to salt,19 responded to cold and 12 responded to alkali stress.MsSAUR14/94/254 could respond to drought and salt stress simultaneously,and MsSAUR297 could respond to drought,salt and alkali stress simultaneously.MsSAUR306 can respond to drought,salt and cold stress simultaneously.The results of this study can provide important candidate genes for the creation,using genetic engineering,of new germplasm with high yield and resistance.关键词
紫花苜蓿/SAUR基因/全基因组鉴定/非生物胁迫/表达模式Key words
alfalfa/SAUR gene/whole genome identification/abiotic stress/expression pattern引用本文复制引用
刘昊,李显炀,何飞,王雪,李明娜,龙瑞才,康俊梅,杨青川,陈林..紫花苜蓿SAUR基因家族的鉴定及其在非生物胁迫中的表达模式研究[J].草业学报,2024,33(4):135-153,19.基金项目
中央及公益性科研院所基本科研业务费专项(2022-YWF-ZYSQ-04)和内蒙古自治区种业科技创新重大示范工程"揭榜挂帅"项目(2022JBGS0016)资助. （2022-YWF-ZYSQ-04）
