2023
DOI: 10.3389/fgene.2023.1180658
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Decoding the fibromelanosis locus complex chromosomal rearrangement of black-bone chicken: genetic differentiation, selective sweeps and protein-coding changes in Kadaknath chicken

Abstract: Black-bone chicken (BBC) meat is popular for its distinctive taste and texture. A complex chromosomal rearrangement at the fibromelanosis (Fm) locus on the 20th chromosome results in increased endothelin-3 (EDN3) gene expression and is responsible for melanin hyperpigmentation in BBC. We use public long-read sequencing data of the Silkie breed to resolve high-confidence haplotypes at the Fm locus spanning both Dup1 and Dup2 regions and establish that the Fm_2 scenario is correct of the three possible scenarios… Show more

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Cited by 2 publications
(3 citation statements)
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References 134 publications
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“…The hyperpigmentation phenotype in the BBC breeds results from common complex chromosomal rearrangement at the Fm locus and distinguishes them from non-BBC breeds (Dharmayanthi et al, 2017;Shinde et al, 2023). The shared rearrangement in diverse BBC breeds supports a model of a common origin of BBC followed by dispersal globally.…”
Section: Discussionmentioning
confidence: 72%
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“…The hyperpigmentation phenotype in the BBC breeds results from common complex chromosomal rearrangement at the Fm locus and distinguishes them from non-BBC breeds (Dharmayanthi et al, 2017;Shinde et al, 2023). The shared rearrangement in diverse BBC breeds supports a model of a common origin of BBC followed by dispersal globally.…”
Section: Discussionmentioning
confidence: 72%
“…Notably, various BBC breeds from different geographic regions across Asia exhibit this distinctive chromosomal rearrangement at the Fm locus. The shared rearrangement and the population genetic signature of this region suggest a common ancestral origin for all BBC breeds (Shinde et al, 2023).…”
Section: Introductionmentioning
confidence: 94%
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