Improved genome assembly of Chinese sucker (Myxocyprinus asiaticus) provides insights into the identification and characterization of pharyngeal teeth related maker genes in Cyprinoidei

Liu, Xin; Zeng, Honghui; Wang, Cheng; Jing, Bo; Gan, Xiangchao; Cui, Fang; He, Shunping

doi:10.1016/j.watbs.2022.100049

Cited by 1 publication

(1 citation statement)

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“…Genomic data provide significant opportunities for advancements in the conservation and evolutionary research of threatened animals (Allendorf et al, 2010; Kohn et al, 2006). As sequencing costs have decreased, the genomes of many endangered fish species have been published, including Trachidermus fasciatus Heckel (Xue et al, 2022), Myxocyprinus asiaticus (Liu et al, 2022), and Brachymystax tsinlingensis (Zhu et al, 2022), etc. Based on genome data, scientific and rational conservation policies have been formulated, enhancing the protection benefits of these endangered animals (Brandies et al, 2019; Waples et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Chromosome-level genome assembly for Sichuan taimen (hucho bleekeri) reveals the extraordinary tandem repeat proportions and its persistent population shrinkage

Zhang,

Xiong,

Jian

et al. 2023

Preprint

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The Chuanshan hucho (Hucho bleekeri) is one of the largest freshwater salmonids, and located at the base of the Salmoninae phylogeny. Facing a serious risk of extinction, the Chuanshan hucho has attracted widespread concern and has been listed as national first-level protected animal in China. Currently, biological research and conservation policies of the Chuanshan hucho are in full progress, but the complete genome sequence is still unknown which hindered the advance of its conservation genomics. In this study, we provided the first chromosome-level genome for Chuanshan hucho, the final genome size was ∼3.45 Gb with 44 chromosomes. The hucho genome contained 44.15% tandem repetitive sequence, which exceeded all sequenced salmonid fishes. According to the nuclear sequence, the divergence time ofHuchoandBrachymystaxwas estimated as 12.29 Mya, and the effective population size of Chuanshan hucho declined from 1 Mya. The genomic resource in this article will promote the protection of Chuanshan hucho and evolutionary genetics studies of salmonids.

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