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pepper variome reveals the history and key loci associated with fruit domestication and diversification

Molecular Plant 2022年第11期15卷 1744-1758页

作者： Yacong Cao Kang Zhang Hailong Yu Shumin Chen Donghui Xu Hong Zhao Zhenghai Zhang Yinqing Yang Xiaozhen Gu Xinyan Liu Haiping Wang Yaxin Jing Yajie Mei Xiang Wang Véronique Lefebvre Weili Zhang Yuan Jin Dongliang An Risheng Wang Paul Bosland Xixiang Li IIan Paran Baoxi Zhang Giovanni Giuliano Lihao Wang Feng Cheng Key Laboratory of Vegetables Geneticsand Physiology of China Ministry of Agriculture and Rural AffairsKey Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture and Rural AffairsSino-Dutch Joint Laboratory of Horticultural GenomicsInstitute of Vegetables and FlowersCAAS(Chinese Academy of Agricultural Sciences)12 Zhongguancun South StreetBeijing 100081P.R.China INRAE GAFLUnitéde Génétique et Amélioration des Fruits et Légumes84140 MontfavetFrance Institute of Vegetables Academy of Agricultural Sciences of Guangxi174 Daxue East RoadNanning 53007P.R.China Department of Plant and Environmental Sciences NMSULas CrucesNM 88003USA Institute of Plant Sciences Agricultural Research OrganizationThe Volcani CenterRishon LeZionIsrael Biotechnology and Agroindustry Division ENEAItalian National Agency for New TechnologiesEnergy and Sustainable DevelopmentVia Anguillarese301-00123 RomaItaly

pepper(Capsicum spp.)is an important vegetable crop that provides a unique pungent sensation when *** construction of a pepper variome map,we examined the main groups that emerged during domestication and breeding of ***,their relationships and temporal succession,and the molecular events underlying the main *** results showed that the initial differentiation in fruit shape and pungency,increase in fruit weight,and transition from erect to pendent fruits,as well as the recent appearance of large,blocky,sweet fruits(bell peppers),were accompanied by strong selection/fixation of key alleles and introgressions in two large genomic ***,we identified Up,which encodes a BIG GRAIN protein involved in auxin transport,as a key domestication gene that controls erect vs pendent fruit *** up mutation gained increased expression especially in the fruit pedicel through a 579-bp sequence deletion in its 5′upstream region,resulting in the phenotype of pendent *** function of Up was confirmed by virus-induced gene *** together,these findings constitute a cornerstone for understanding the domestication and differentiation of a key horticultural crop.

关键词： Capsicum variome domestication fruit orientation pungency fruit shape sweet pepper blocky fruit pepper narrow fruit pepper

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