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A comprehensive genome variation map of melon identifies multiple domestication events and loci influencing agronomic traits.
Nature Genetics ( IF 31.7 ) Pub Date : 2019-11-01 , DOI: 10.1038/s41588-019-0522-8
Guangwei Zhao 1 , Qun Lian 2 , Zhonghua Zhang 3, 4 , Qiushi Fu 3 , Yuhua He 1 , Shuangwu Ma 1 , Valentino Ruggieri 5, 6 , Antonio J Monforte 7 , Pingyong Wang 1 , Irene Julca 8, 9, 10 , Huaisong Wang 3 , Junpu Liu 1 , Yong Xu 11 , Runze Wang 12 , Jiabing Ji 2 , Zhihong Xu 1 , Weihu Kong 1 , Yang Zhong 2 , Jianli Shang 1 , Lara Pereira 5, 6 , Jason Argyris 5, 6 , Jian Zhang 1 , Carlos Mayobre 5, 6 , Marta Pujol 5, 6 , Elad Oren 13 , Diandian Ou 1 , Jiming Wang 1 , Dexi Sun 1 , Shengjie Zhao 1 , Yingchun Zhu 1 , Na Li 1 , Nurit Katzir 13 , Amit Gur 13 , Catherine Dogimont 14 , Hanno Schaefer 15 , Wei Fan 2 , Abdelhafid Bendahmane 14 , Zhangjun Fei 16, 17 , Michel Pitrat 14 , Toni Gabaldón 9, 10, 18 , Tao Lin 2, 19 , Jordi Garcia-Mas 5, 6 , Yongyang Xu 1 , Sanwen Huang 2
Affiliation  

Melon is an economically important fruit crop that has been cultivated for thousands of years; however, the genetic basis and history of its domestication still remain largely unknown. Here we report a comprehensive map of the genomic variation in melon derived from the resequencing of 1,175 accessions, which represent the global diversity of the species. Our results suggest that three independent domestication events occurred in melon, two in India and one in Africa. We detected two independent sets of domestication sweeps, resulting in diverse characteristics of the two subspecies melo and agrestis during melon breeding. Genome-wide association studies for 16 agronomic traits identified 208 loci significantly associated with fruit mass, quality and morphological characters. This study sheds light on the domestication history of melon and provides a valuable resource for genomics-assisted breeding of this important crop.

中文翻译:

甜瓜的综合基因组变异图确定了多个驯化事件和影响农艺性状的基因座。

甜瓜是一种经济上重要的水果作物,已经种植了数千年;然而,其驯化的遗传基础和历史仍然很大程度上未知。在这里,我们报告了来自 1,175 个种质的重新测序的甜瓜基因组变异的综合图谱,这代表了该物种的全球多样性。我们的研究结果表明,在甜瓜中发生了 3 次独立的驯化事件,在印度发生了 2 次,在非洲发生了 1 次。我们检测到两组独立的驯化扫描,导致甜瓜和 agrestis 两个亚种在甜瓜育种过程中具有不同的特征。对 16 个农艺性状的全基因组关联研究确定了 208 个与果实质量、质量和形态特征显着相关的基因座。
更新日期:2019-11-01
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