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Genome re-sequencing reveals the history of apple and supports a two-stage model for fruit enlargement

文献类型： 外文期刊

作者： Duan, Naibin 1 ; Bai, Yang 3 ; Sun, Honghe 3 ; Wang, Nan 1 ; Ma, Yumin 2 ; Li, Mingjun 4 ; Wang, Xin 3 ; Jiao, Chen 3 ; Lega 1 ;

作者机构： 1.Shandong Agr Univ, State Key Lab Crop Biol, Tai An 271000, Shandong, Peoples R China

2.Shandong Acad Agr Sci, Shandong Ctr Crop Germplasm Resources, Jinan 250100, Shandong, Peoples R China

3.Cornell Univ, Boyce Thompson Inst, Ithaca, NY 14853 USA

4.Northwest A&F Univ, Coll Hort, Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China

5.Cornell Univ, Sch Integrat Plant Sci, Hort Sect, Ithaca, NY 14853 USA

6.Chinese Acad Agr Sci, Inst Pomol, Xingcheng 125100, Liaoning, Peoples R China

7.Xinjiang Agr Univ, Coll Forestry & Hort, Res Ctr Specialty Fruits, Urumqi 830000, Xinjiang, Peoples R China

8.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157500, Heilongjiang, Peoples R China

9.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Lab Biogeog & Bioresource Arid Land, Urumqi 830011, Xinjiang, Peoples R China

10.USDA ARS, Plant Genet Resources Unit, Geneva, NY 14456 USA

11.USDA ARS, Robert W Holley Ctr Plant & Hlth, Ithaca, NY 14853 USA

期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）

ISSN： 2041-1723

年卷期： 2017 年 8 卷

页码：

收录情况： SCI

摘要： Human selection has reshaped crop genomes. Here we report an apple genome variation map generated through genome sequencing of 117 diverse accessions. A comprehensive model of apple speciation and domestication along the Silk Road is proposed based on evidence from diverse genomic analyses. Cultivated apples likely originate from Malus sieversii in Kazakhstan, followed by intensive introgressions from M. sylvestris. M. sieversii in Xinjiang of China turns out to be an "ancient" isolated ecotype not directly contributing to apple domestication. We have identified selective sweeps underlying quantitative trait loci/genes of important fruit quality traits including fruit texture and flavor, and provide evidences supporting a model of apple fruit size evolution comprising two major events with one occurring prior to domestication and the other during domestication. This study outlines the genetic basis of apple domestication and evolution, and provides valuable information for facilitating marker-assisted breeding and apple improvement.

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