Haplotype-based phylogenetic analysis and population genomics uncover the origin and domestication of sweetpotato

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外文摘要：The hexaploid sweetpotato(Ipomoea batatas)is one of the most important root crops worldwide.However,its genetic origin remains controversial,and its domestication history remains unknown.In this study,we used a range of genetic evidence and a newly developed haplotype-based phylogenetic analysis to identify two probable progenitors of sweetpotato.The diploid progenitor was likely closely related to Ipomoea ae-quatoriensis and contributed the B1 subgenome,IbT-DNA2,and the lineage 1 type of chloroplast genome to sweetpotato.The tetraploid progenitor of sweetpotato was most likely I.batatas 4x,which donated the B2 subgenome,IbT-DNA1,and the lineage 2 type of chloroplast genome.Sweetpotato most likely originated from reciprocal crosses between the diploid and tetrapioid progenitors,followed by a subsequent whole-genome duplication.In addition,we detected biased gene exchanges between the subgenomes;the rate of B1 to B2 subgenome conversions was nearly three times higher than that of B2 to B1 subgenome conver-sions.Our analyses revealed that genes involved in storage root formation,maintenance of genome stabil-ity,biotic resistance,sugar transport,and potassium uptake were selected during the speciation and domestication of sweetpotato.This study sheds light on the evolution of sweetpotato and paves the way for improvement of this crop.

外文关键词：

sweetpotatoorigingene conversiondomesticationAbT-DNAHPA

作者：

Mengxiao Yan、Ming Li、Yunze Wang、Xinyi Wang、M-Hossein Moeinzadeh、Dora G.Quispe-Huamanquispe、Weijuan Fan、Yijie Fang、Yuqin Wang、Haozhen Nie、Zhangying Wang、Aiko Tanaka、Bettina Heider、Jan F.Kreuze、Godelieve Gheysen、Hongxia Wang、Martin Vingron、Ralph Bock、Jun Yang

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作者单位：

Shanghai Key Laboratory of Plant Functional Genomics and Resources,Shanghai Chenshan Botanical Garden,Shanghai 201602,China

College of Life Sciences,Chongqing Normal University,Chongqing 401331,China

Biotechnology and Nuclear Technology Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610061,China

College of Life Sciences,Shanghai Normal University,Shanghai 200234,China

Department of Computational Molecular Biology,Max Planck Institute for Molecular Genetics,Ihnestraße 63-73,14195 Berlin,Germany

Department of Biotechnology,Ghent University,9000 Ghent,Belgium

Guangdong Provincial Key Laboratory of Crops Genetics and Improvement,Crop Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China

Graduate School of Bioagricultural Sciences,Nagoya University,Chikusa,Nagoya 464-8601,Japan

International Potato Center(CIP),Lima,Peru

CAS Center for Excellence of Molecular Plant Sciences,Institute of Plant Physiology and Ecology,Chinese Academy of Sciences,Shanghai 200233,China

Max-Planck-Institut für Molekulare Pflanzenphysiologie,Am Mühlenberg 1,14476 Potsdam-Golm,Germany

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基金：

Ministry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology of the People's Republic of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of Chinathe"1+9"Open Competition Project of the Sichuan Academy of Agricultural Sciences to select the best candidatesChongqing Normal University FoundationShanghai Municipal Afforestation & City Appearance and Environmental Sanitation AdministrationShanghai Municipal Afforestation & City Appearance and Environmental Sanitation AdministrationShanghai Municipal Afforestation & City Appearance and Environmental Sanitation AdministrationShanghai Municipal Afforestation & City Appearance and Environmental Sanitation AdministrationScience and Technology Commission of Shanghai MunicipalityYouth Innovation Promotion Association CASBureau of Science and Technology for Development CAS

项目编号：

2019YFD10007032019YFD1000704-22019YFD1000701-2323002073227222831771854sweetpotato part of 1+9KJGG00123XLB033G222413G222411G232405G24240722JC1401300KFJ-BRP-017-42

出版年：

2024

DOI：

10.1016/j.molp.2023.12.019

分子植物(英文版)

中科院上海生命科学研究院植物生理生态所　中国植物生理学会

分子植物(英文版)

CSTPCD

影响因子：0.659

ISSN：1674-2052

年,卷(期)：2024.17(2)

参考文献量127