The draft genome of watermelon (Citrullus lanatus) and resequencing of 20 diverse accessions
By Shaogui Guo, Jianguo Zhang, Honghe Sun, J. Salse, W. J. Lucas, Haiying Zhang, Yi Zheng, Linyong Mao, Yi Ren, Zhiwen Wang and 55 more. Nature Genetics, 2012
744 citations recorded by the source corpus.
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.
Subfields: Genetics, Plant Science
View Paper: https://www.semanticscholar.org/paper/88c9f9237a6c1ed63abb1ec6e11f5fc740417684
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Citations in the corpus
- SNPhylo: a pipeline to construct a phylogenetic tree from huge SNP data (2014, background): “evolution and functional innovation of genes [6,7].”
- PLAZA 3.0: an access point for plant comparative genomics (2014, background): “Several genomes of plants with economical and agricultural importance are now present in PLAZA, including Gossypium raimondii (cotton) (27), Eucalyptus grandis (eucalyptus) (28), Solanum lycopersicum (tomato) (29), Solanum tuberosum (potato) (30), Beta vulgaris (sugar beet) (31), Prunus persica (pea”
- Fusarium Wilt of Watermelon: 120 Years of Research (2014, background): “The base chromosome number of C. lanatus is x= 11 (2n= 22) and recent data suggest that the modern species (x= 11) evolved from a paleohexaploid ancestor of x= 7 (Guo et al. 2013); x=7 also is the base chromosome number for the genus Cucumis (Singh 1990).”