Heat-stress-induced sprouting and differential gene expression in growing potato tubers: Comparative transcriptomics with that induced by postharvest sprouting

作     者：Guodong Zhang Ruimin Tang Suyan Niu Huaijun Si Qing Yang Om P.Rajora Xiu-Qing Li Guodong Zhang;Ruimin Tang;Suyan Niu;Huaijun Si;Qing Yang;Om P.Rajora;Xiu-Qing Li

作者机构：Gansu Provincial Key Laboratory of Aridland Crop ScienceGansu Key Laboratory of Crop Genetic and Germplasm EnhancementGansu Agricultural UniversityLanzhouChina College of AgronomyGansu Agricultural UniversityLanzhouChina Fredericton Research and Development CentreAgriculture and Agri-Food CanadaGovernment of CanadaFrederictonNew BrunswickCanada College of Life SciencesNanjing Agricultural UniversityNanjingChina Institute of BioengineeringZhengzhou Normal UniversityZhengzhouChina College of Life Science and TechnologyGansu Agricultural UniversityLanzhouChina Faculty of Forestry and Environmental ManagementUniversity of New BrunswickFrederictonCanada 

出 版 物：《Horticulture Research》 (园艺研究（英文）)

年 卷 期：2021年第8卷第1期

页      面：3089-3106页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 1001[医学-基础医学(可授医学、理学学位)] 09[农学] 0901[农学-作物学] 0703[理学-化学] 0836[工学-生物工程] 0902[农学-园艺学] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：This research was mainly supported by the National Natural Science Foundation of China(Nos.31860399,31560413 to Huaijun Si) A-base funding of Agriculture and Agri-Food Canada(AAFC),Government of Canada(to Xiu-Qing Li) We thank the China Scholarship Council for its support to Guodong Zhang and Ruimin Tang to work in AAFC under Xiu-Qing Li’s supervision We also thank the funding supports from the Natural Science Foundation of Jiangsu Province(No.BK20180519 to Qing Yang) the Key Research Projects Program of Higher Education Institutes in Henan Provinces(21A210029 to Suyan Niu) the funding from the Natural Sciences and Engineering Research Council of Canada Discovery Grant(RGPIN 2017-04589 to Om P.Rajora) 

主　　题：selecting similarity stress 

摘      要：Crops face increased risk from heat stress due to climate ***(Solanum tuberosum L.)tubers grown in hot summers often have defects including pre-harvest sprouting(“heat sprouts).We have used 18 potato cultivars to investigate whether heat stress(HS)conditions alone could cause heat sprouting and dormancy changes in *** also examined transcriptomic responses of potato to HS and whether these responses are like those induced by postharvest *** demonstrated that HS alone caused heat sprouts and shortened postharvest dormancy period,heat-sprouted tubers became dormant after harvest,and cultivars varied substantially for producing heat spouts but there was no clear association with cultivar maturity *** Innovator did not show any heat sprouts and still had long ***-associated genes(DOG1 and SLP)were downregulated in HS tubers like in postharvest sprouting *** have identified 1201 differentially expressed genes,14 enriched GO terms and 12 enriched KEGG pathways in response to HS in growing tubers of‘Russet Burbank’.Transcriptomic response of‘Russet Burbank’to HS showed significant similarities to that of postharvest non-HS sprouted *** biosynthesis pathway was enriched in heat-stressed tubers and was likely involved in heat sprouting and dormancy *** sprouting and postharvest sprouting shared common candidate genes and had significant similarity in gene *** study has significance for selecting potato cultivars for farming,planning storage and utilization of heat-stressed tubers,identifying sprouting-related genes,understanding heat-stress biology,and breeding heat-tolerant potato cultivars,especially for sustainable potato production under climate change.