Quantitative Trait Loci Mapping and Marker Identification for Low Salinity Tolerance Trait in the Swimming Crab (Portunus trituberculatus) | Zendy

Jianjian Lv | Zendy; Dongfang Sun | Zendy; Deping Yan | Zendy; Xingbin Ti | Zendy; Ping Liu | Zendy; Jian Li | Zendy

Open Access

Quantitative Trait Loci Mapping and Marker Identification for Low Salinity Tolerance Trait in the Swimming Crab (Portunus trituberculatus)

Author(s) -

Jianjian Lv,

Dongfang Sun,

Deping Yan,

Xingbin Ti,

Ping Liu,

Jian Li

Publication year - 2019

Publication title -

frontiers in genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.413

H-Index - 81

ISSN - 1664-8021

DOI - 10.3389/fgene.2019.01193

Subject(s) - quantitative trait locus , biology , portunus trituberculatus , salinity , genetics , candidate gene , kegg , population , gene , fishery , ecology , transcriptome , gene expression , demography , sociology

Low salinity is one of the most important abiotic factors that directly affect the abundance of the swimming crab, Portunus trituberculatus . Quantitative trait loci (QTL) mapping could be helpful in identifying the markers and genes involved in low salinity tolerance. In this study, two QTLs of low salt tolerance were mapped on linkage group 17 (LG17, 2.6–5.2 cM) based on a high-density linkage map. Ninety-five markers related to low salinity tolerance were identified via association analysis, and seventy-nine low salt-related candidate genes (including ammonium transport, aldehyde dehydrogenase, and glucosyltransferase) were screened from draft genome of the species via these markers. This represents the first report of QTL mapping for low salinity tolerance in the swimming crab, which may be useful to elucidate salinity adaptation mechanisms.

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