期刊
SCIENTIFIC DATA
卷 6, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41597-019-0139-x
关键词
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资金
- National Key Research and Development Program of China [2016YFC1200500]
- National Natural Science Foundation of China [31872553, 31602207, 41706157, 31272653]
- China Agriculture Research System [CARS-47-G04]
Collichthys lucidus (C. lucidus) is a commercially important marine fish species distributed in coastal regions of East Asia with the X1X1X2X2/X1X2Y multiple sex chromosome system. The karyotype for female C. lucidus is 2n = 48, while 2n = 47 for male ones. Therefore, C. lucidus is also an excellent model to investigate teleost sex-determination and sex chromosome evolution. We reported the first chromosome genome assembly of C. lucidus using Illumina short-read, PacBio long-read sequencing and Hi-C technology. An 877 Mb genome was obtained with a contig and scaffold N50 of 1.1 Mb and 35.9 Mb, respectively. More than 97% BUSCOs genes were identified in the C. lucidus genome and 28,602 genes were annotated. We identified potential sex-determination genes along chromosomes and found that the chromosome 1 might be involved in the formation of Y specific metacentric chromosome. The first C. lucidus chromosome-level reference genome lays a solid foundation for the following population genetics study, functional gene mapping of important economic traits, sex-determination and sex chromosome evolution studies for Sciaenidae and teleosts.
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