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Sci Data
2023 Sep 20;101:642. doi: 10.1038/s41597-023-02508-1.
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The first high-quality genome assembly and annotation of Patiria pectinifera.
Jung J
,
Jhang SY
,
Kim B
,
Koh B
,
Ban C
,
Seo H
,
Park T
,
Chi WJ
,
Kim S
,
Kim H
,
Yu J
.
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The blue bat star, a highly adaptive species in the East Sea of Korea, has displayed remarkable success in adapting to recent climate change. The genetic mechanisms behind this success were not well-understood, prompting our report on the first chromosome-level assembly of the Patiria genus. We assembled the genome using Nanopore and Illumina sequences, yielding a total length of 615 Mb and a scaffold N50 of 24,204,423 bp. Hi-C analysis allowed us to anchor the scaffold sequences onto 22 pseudochromosomes. K-mer based analysis revealed 5.16% heterozygosity rate of the genome, higher than any previously reported echinoderm species. Our transposable element analysis exposed a substantial number of genome-wide retrotransposons and DNA transposons. These results offer valuable resources for understanding the evolutionary mechanisms behind P. pectinifera's successful adaptation in fluctuating environments.
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37730712
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NIBR202131103 MOE | National Institute of Biological Resources (NIBR), NIBR202227203 MOE | National Institute of Biological Resources (NIBR)
Fig. 1. Chromosome-level assembly of P. pectinifera genome. (a) Image presentation of P. pectinifera. (b) Geographical origin of the collected sample. The map has been generated by R package “ggmap”. (c) K-mer (21-mer) plot of the species for genome size and heterozygosity estimation. (d) Hi-C contact map of representing 22 pseudochromosomes.
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