The genetic architecture of floral traits in the woody plant Prunus mume

Qixiang Zhang (), He Zhang, Lidan Sun, Guangyi Fan, Meixia Ye, Libo Jiang, Xin Liu, Kaifeng Ma, Chengcheng Shi, Fei Bao, Rui Guan, Yu Han, Yuanyuan Fu, Huitang Pan, Zhaozhe Chen, Liangwei Li, Jia Wang, Meiqi Lv, Tangchun Zheng, Cunquan Yuan, Yuzhen Zhou, Simon Ming-Yuen Lee, Xiaolan Yan, Xun Xu, Rongling Wu (), Wenbin Chen () and Tangren Cheng ()
Additional contact information
Qixiang Zhang: Beijing Forestry University
He Zhang: BGI-Shenzhen
Lidan Sun: Beijing Forestry University
Guangyi Fan: BGI-Shenzhen
Meixia Ye: Beijing Forestry University
Libo Jiang: Beijing Forestry University
Xin Liu: BGI-Shenzhen
Kaifeng Ma: Beijing Forestry University
Chengcheng Shi: BGI-Shenzhen
Fei Bao: Beijing Forestry University
Rui Guan: BGI-Shenzhen
Yu Han: Beijing Forestry University
Yuanyuan Fu: BGI-Shenzhen
Huitang Pan: Beijing Forestry University
Zhaozhe Chen: BGI-Shenzhen
Liangwei Li: BGI-Shenzhen
Jia Wang: Beijing Forestry University
Meiqi Lv: BGI-Shenzhen
Tangchun Zheng: Beijing Forestry University
Cunquan Yuan: Beijing Forestry University
Yuzhen Zhou: Beijing Forestry University
Simon Ming-Yuen Lee: University of Macau
Xiaolan Yan: Mei Research Center of China
Xun Xu: BGI-Shenzhen
Rongling Wu: The Pennsylvania State University
Wenbin Chen: BGI-Shenzhen
Tangren Cheng: Beijing Forestry University

Nature Communications, 2018, vol. 9, issue 1, 1-12

Abstract: Abstract Mei (Prunus mume) is an ornamental woody plant that has been domesticated in East Asia for thousands of years. High diversity in floral traits, along with its recent genome sequence, makes mei an ideal model system for studying the evolution of woody plants. Here, we investigate the genetic architecture of floral traits in mei and its domestication history by sampling and resequencing a total of 351 samples including 348 mei accessions and three other Prunus species at an average sequencing depth of 19.3×. Highly-admixed population structure and introgression from Prunus species are identified in mei accessions. Through a genome-wide association study (GWAS), we identify significant quantitative traits locus (QTLs) and genomic regions where several genes, such as MYB108, are positively associated with petal color, stigma color, calyx color, and bud color. Results from this study shed light on the genetic basis of domestication in flowering plants, particularly woody plants.

Date: 2018
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DOI: 10.1038/s41467-018-04093-z

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