The Impact of Mutant EDNRB on the Two-End Black Coat Color Phenotype in Chinese Local Pigs

Bibliographic Details
Title: The Impact of Mutant EDNRB on the Two-End Black Coat Color Phenotype in Chinese Local Pigs
Authors: Min Huang, Zuohao Wen, Tao Huang, Xiaolong Zhou, Zhijun Wang, Songbai Yang, Ayong Zhao
Source: Animals, Vol 15, Iss 4, p 478 (2025)
Publisher Information: MDPI AG, 2025.
Publication Year: 2025
Collection: LCC:Veterinary medicine
LCC:Zoology
Subject Terms: Chinese two-end black coat color pigs, EDNRB, melanin pathway, cell migration, protein interaction, Veterinary medicine, SF600-1100, Zoology, QL1-991
More Details: Endothelin Receptor Type B (EDNRB) is expressed in a variety of cells during embryonic stage, including melanocyte precursors cells. Our previous studies found that 11 bp deletion of EDNRB caused the two-end black (TEB) coat color in Chinese pigs. In this study, we aimed to explore the mutant EDNRB on the formation of TEB coat color in Chinese pigs. We constructed recombinant plasmid for wild and mutant EDNRB and EDN1, respectively, and transfected the recombinant plasmid into mouse B16 melanoma cells in groups. Real-time fluorescent quantitative PCR (RT-qPCR) was performed to detect expression of genes that participate in melanin pathway, including PLCĪ³, Raf, MITF. Comparing to the wild-type EDNRB cells, expression of the three genes in the cell line expressing mutant EDNRB cells was significantly reduced. We measured the melanin content produced by transfected recombinant granulocytes of wild and mutant EDNRB and found that the amount of melanin in mutant EDNRB cells was significantly lower than that of the wild. Wound-healing assay confirmed that the migration and mobility rate of mutant EDNRB cells were significantly lower than the wild. Co-immunoprecipitation further confirmed that mutant EDNRB could not interact with the EDN1 protein. In conclusion, this study revealed that the 11 bp deletion of EDNRB reduced the melanin production, which may be caused by inhibiting the expression of PLCĪ³, Raf, and MITF. The mutant EDNRB reduced melanocyte migration and could not interact with the EDN1 protein. We explored the effect of mutant EDNRB in Chinese pigs with TEB coat color, and the results provided a reference for exploring molecular mechanism of mutant EDNRB on the formation of TEB coat color pigs.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2076-2615
Relation: https://www.mdpi.com/2076-2615/15/4/478; https://doaj.org/toc/2076-2615
DOI: 10.3390/ani15040478
Access URL: https://doaj.org/article/1add058f1c464eca89e1c17ad020e54f
Accession Number: edsdoj.1add058f1c464eca89e1c17ad020e54f
Database: Directory of Open Access Journals
More Details
ISSN:20762615
DOI:10.3390/ani15040478
Published in:Animals
Language:English