Assessing the Effectiveness of Sex-Linked Molecular Markers to Identify Neomale Breeders for the Production of All-Female Progenies of Rainbow Trout

Colihueque, Nelson; Parraguez, Margarita

doi:10.1007/s10126-024-10288-x

Mar Biotechnol

2024

DOI: 10.1007/s10126-024-10288-x

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Assessing the Effectiveness of Sex-Linked Molecular Markers to Identify Neomale Breeders for the Production of All-Female Progenies of Rainbow Trout

Nelson Colihueque,

Margarita Parraguez

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2024

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Cited by 2 publications

References 21 publications

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Rapid Sex Identification in Spotted Knifejaw (Oplegnathus punctatus) Using tmem88 Gene Structural Variation Markers

Xu,

Xiao,

Dong

et al. 2024

Mar Biotechnol

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Rapid Sex Identification in Spotted Knifejaw (Oplegnathus punctatus) Using tmem88 Gene Structural Variation Markers

Xu,

Xiao,

Dong

et al. 2024

Mar Biotechnol

View full text Add to dashboard Cite

Genome-Wide Association Studies (GWAS) and Transcriptome Analysis Reveal Male Heterogametic Sex-Determining Regions and Candidate Genes in Northern Snakeheads (Channa argus)

Liu,

Zhang,

Cui

et al. 2024

IJMS

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The Northern snakehead (Channa argus) is a significant economic aquaculture species in China. Exhibiting sexual dimorphism in the growth rate between females and males, mono-sex breeding holds substantial value for aquaculture. This study employed GWAS and transcriptome analysis were applied to identify sex determination genomic regions and develop sex-specific markers. A total of 270 single-nucleotide polymorphisms (SNPs) and 31 insertion-deletions (InDels) were identified as being sexually dimorphic through GWAS and fixation index (Fst) scanning. Based on GWAS results, two sex-specific InDel markers were developed, effectively distinguishing genetic sex for XX females, XY males, and YY super-males via (polymerase chain reaction) PCR amplification. A major genomic segment of approximately 115 kb on chromosome 3 (Chr 03) was identified as the sex-determination region. A comparative transcriptome analysis of gonads for three sexes identified 158 overlapping differentially expressed genes (DEGs). Additionally, three sex-related candidate genes were identified near the sex determination region, including id2, sox11, and rnf144a. Further studies are required to elucidate the functions of these genes. Overall, two sex-specific InDel markers support a male heterogametic XX/XY sex-determination system in Northern snakeheads and three candidate genes offer new insights into sex determination and the evolution of sex chromosomes in teleost fish.

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Assessing the Effectiveness of Sex-Linked Molecular Markers to Identify Neomale Breeders for the Production of All-Female Progenies of Rainbow Trout

Cited by 2 publications

References 21 publications

Rapid Sex Identification in Spotted Knifejaw (Oplegnathus punctatus) Using tmem88 Gene Structural Variation Markers

Rapid Sex Identification in Spotted Knifejaw (Oplegnathus punctatus) Using tmem88 Gene Structural Variation Markers

Genome-Wide Association Studies (GWAS) and Transcriptome Analysis Reveal Male Heterogametic Sex-Determining Regions and Candidate Genes in Northern Snakeheads (Channa argus)

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