云南师范大学学报（自然科学版）2025，Vol.45Issue(3)：10-17,8.DOI:10.7699/j.ynnu.ns-2025-027
二倍体马铃薯薯肉茄碱含量变异的代谢和转录分析
Metabolic and Transcriptomic Analysis of Steroidal Glycoalkaloid Content Variation in Tuber Flesh of Diploid Potatoes
摘要
Abstract
The decrease in SGA content in tuber flesh is a typical domestication trait.To reveal SGA content variation and underlying molecular regulatory network,we selected 30 diploid wild and culti-vated accessions for metabolomic and transcriptomic analyses.A total of 47 distinct SGAs were sys-tematically identified,with 26 showing significantly lower levels in cultivated potato flesh.Transcrip-tomic analysis revealed that the expressions of 33 SGA biosynthetic genes were down-regulated in the cultivated accessions,directly causing SGA content reduction.Co-expression analysis identified that 33 biosynthetic genes were co-expressed with 36 candidate transcription factors,among which 5 transcrip-tion factors such as GAME9 showed significant expression differences between the wild and cultivated accessions.关键词
马铃薯/茄碱/代谢组/转录组Key words
Potato/Steroidal glycoalkaloids/Metabolomics/Transcriptomics分类
农业科技引用本文复制引用
龙江月,白雄辉,谭薇,段晓艳,张钟,祝光涛..二倍体马铃薯薯肉茄碱含量变异的代谢和转录分析[J].云南师范大学学报（自然科学版）,2025,45(3):10-17,8.基金项目
国家自然科学基金资助项目(32272725) （32272725）
广东省基础与应用基础研究重大项目(2021B0301030004). （2021B0301030004）
