中国农学通报2025，Vol.41Issue(1)：33-41,9.
2个杏栽培品种需冷量差异的分子机制探索
Investigation of Molecular Mechanism of Different Chilling Requirements Between Two Apricot Cultivars
摘要
Abstract
This study explores the demand for low temperature accumulation during the germination process of apricot trees and analyzes the impact of warm winter phenomena caused by global warming on apricot yield. In this study,using the high-quality apricot variety'Haitanghong'and its bud variant'Zaoyan'from southern China as experimental materials,through transcriptomic analysis of 550 hours of treatment at 4℃,3124 differentially expressed genes (DEGs) were identified,and many were associated with plant hormones and protein dephosphorylation. By observing the branch color of the two varieties under low-temperature treatments,we found that the cultivar with the lower chilling requirement was more tolerant to cold. These results suggest that compared to'Haitanghong','Zaoyan'has a lower low-temperature requirement,and the difference in chilling requirements between the two varieties may be related to plant hormones and post-transcriptional modification. And the reason for these differences of alternative splicing may be associated with the varied chilling requirement in the two cultivars. These results can provide a reference for mitigating the decrease of apricot yield under climate warming.关键词
杏/全球变暖/低温需求/转录组测序/植物激素/转录后调控/耐寒性/差异表达基因/蛋白质去磷酸化/可变剪切Key words
apricot/global warming/chilling requirement/transcriptome sequencing/plant hormone/post-transcriptional regulation/cold tolerance/differentially expressed genes (DEGs)/protein dephosphorylation/alternative splicing分类
农业科技引用本文复制引用
刘佳,黄大荣,尧美英,刘硕,张玉萍,张国薇..2个杏栽培品种需冷量差异的分子机制探索[J].中国农学通报,2025,41(1):33-41,9.基金项目
辽宁省新品种示范及轻剪栽培技术研发项目"新品种示范及轻简栽培技术研发"(2023JH1/10200005) （2023JH1/10200005）
四川省农业科学院科技成果中试熟化与示范转化工程项目(ZSSH_2024) （ZSSH_2024）
四川省农业科学院与阿坝州院州合作项目"李子优质高效技术集成与推广"(YZHZ_2024) （YZHZ_2024）
德阳市旌阳区农业农村领域重点研发项目(ZDYF_2024) （ZDYF_2024）
四川省农业科学院人才基金项目"杏品种低温需冷量研究"(2020RCJJ). （2020RCJJ）
