Molecular and biochemical components associated with chilling tolerance in tomato:comparison of different developmental stages  

作　　者：Maria Dolores Camalle Elena Levin Sivan David Adi Faigenboim Majid R.Foolad Amnon Lers 

机构地区：[1]Department of Postharvest Science,Volcani Institute,Agricultural Research Organization,Rishon LeZion,Israel [2]Robert H.Smith Faculty of Agriculture Food and Environment,The Robert H.Smith Institute of Plant Sciences and Genetics in Agriculture,The Hebrew University of Jerusalem,Rehovot,Israel [3]Institute of Plant Sciences,Volcani Institute,Agricultural Research Organization,Rishon LeZion,Israel [4]Department of Plant Science,The Pennsylvania State University,University Park,PA,USA

出　　处：《Molecular Horticulture》2024年第1期150-169,共20页分子园艺(英文)

基　　金：supported by the Research Grant Award No.IS-5321-20C from BARD,the United States-Israel Agricultural Research and Development Fund,to AL and MRF.

摘　　要：The cultivated tomato,Solanum lycopersicum,is highly sensitive to cold stress(CS),resulting in significant losses during cultivation and postharvest fruit storage.Previously,we demonstrated the presence of substantial genetic variation in fruit chilling tolerance in a tomato recombinant inbred line(RIL)population derived from a cross between a chilling-sensitive tomato line and a chilling-tolerant accession of the wild species S.pimpinellifolium.Here,we investigated molecular and biochemical components associated with chilling tolerance in fruit and leaves,using contrasting groups of“chilling tolerant”and“chilling sensitive”RI lines.Transcriptomic analyses were conducted on fruit exposed to CS,and gene expressions and biochemical components were measured in fruit and leaves.The analyses revealed core responding genes specific to either the cold-tolerant or cold-sensitive RI lines,which were differentially regulated in similar fashion in both leaves and fruit within each group.These genes may be used as markers to determine tomato germplasm cold tolerance or sensitivity.This study demonstrated that tomato response to CS in different developmental stages,including seedling and postharvest fruit,might be mediated by common biological/genetic factors.Therefore,genetic selection for cold tolerance during early stages of plant development may lead to lines with greater postharvest fruit chilling tolerance.

关 键 词：POSTHARVEST TOMATO STORAGE COLD CHILLING 

分 类 号：S64[农业科学—蔬菜学]