| Literature DB >> 23179023 |
Shaogui Guo1, Jianguo Zhang, Honghe Sun, Jerome Salse, William J Lucas, Haiying Zhang, Yi Zheng, Linyong Mao, Yi Ren, Zhiwen Wang, Jiumeng Min, Xiaosen Guo, Florent Murat, Byung-Kook Ham, Zhaoliang Zhang, Shan Gao, Mingyun Huang, Yimin Xu, Silin Zhong, Aureliano Bombarely, Lukas A Mueller, Hong Zhao, Hongju He, Yan Zhang, Zhonghua Zhang, Sanwen Huang, Tao Tan, Erli Pang, Kui Lin, Qun Hu, Hanhui Kuang, Peixiang Ni, Bo Wang, Jingan Liu, Qinghe Kou, Wenju Hou, Xiaohua Zou, Jiao Jiang, Guoyi Gong, Kathrin Klee, Heiko Schoof, Ying Huang, Xuesong Hu, Shanshan Dong, Dequan Liang, Juan Wang, Kui Wu, Yang Xia, Xiang Zhao, Zequn Zheng, Miao Xing, Xinming Liang, Bangqing Huang, Tian Lv, Junyi Wang, Ye Yin, Hongping Yi, Ruiqiang Li, Mingzhu Wu, Amnon Levi, Xingping Zhang, James J Giovannoni, Jun Wang, Yunfu Li, Zhangjun Fei, Yong Xu.
Abstract
Watermelon, Citrullus lanatus, is an important cucurbit crop grown throughout the world. Here we report a high-quality draft genome sequence of the east Asia watermelon cultivar 97103 (2n = 2× = 22) containing 23,440 predicted protein-coding genes. Comparative genomics analysis provided an evolutionary scenario for the origin of the 11 watermelon chromosomes derived from a 7-chromosome paleohexaploid eudicot ancestor. Resequencing of 20 watermelon accessions representing three different C. lanatus subspecies produced numerous haplotypes and identified the extent of genetic diversity and population structure of watermelon germplasm. Genomic regions that were preferentially selected during domestication were identified. Many disease-resistance genes were also found to be lost during domestication. In addition, integrative genomic and transcriptomic analyses yielded important insights into aspects of phloem-based vascular signaling in common between watermelon and cucumber and identified genes crucial to valuable fruit-quality traits, including sugar accumulation and citrulline metabolism.Entities:
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Year: 2012 PMID： 23179023 DOI： 10.1038/ng.2470
Source DB: PubMed Journal: Nat Genet ISSN： 1061-4036 Impact factor: 38.330