Polymorphism in IGFALS gene and its association with scrotal circumference in Hu lambs.

Publisher: Taylor & Francis Country of Publication: England NLM ID: 9011409 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1532-2378 (Electronic) Linking ISSN: 10495398 NLM ISO Abbreviation: Anim Biotechnol Subsets: MEDLINE

Publication: 2005- : Abingdon, Oxford : Taylor & Francis
Original Publication: New York, N.Y. : Marcel Dekker, c1990-

Scrotum* ; Semen Analysis*/veterinary; Sheep/genetics ; Male ; Animals ; Sheep, Domestic ; Reproduction ; Polymorphism, Genetic/genetics

Scrotal circumference is an important reproductive index of breeding rams, which has a high genetic correlation with ejaculation volume and semen quality. In this study, the scrotal circumference of 1353 male Hu sheep at different stages of development was measured and descriptive statistical analysis was performed. The results showed that the coefficient of variation of scrotal circumference at each stage was greater than 10%, and its heritability were moderately to high, ranging from 0.318 to 0.719. We used PCR amplification and Sanger sequencing to scan the polymorphisms of the IGFALS gene, and performed association analysis with the circumference of the scrotum at different stages. We identified a synonymous mutation g.918 G > C in exon 1 of the IGFALS gene, and this mutation was significantly associated with scrotal circumference at 100, 120, 140, 160 and 180 days ( p  < 0.05). Therefore, IGFALS gene polymorphism can be used as a molecular marker affecting scrotal circumference of Hu sheep, which can provide a reference for future molecular marker-assisted selection of scrotal circumference in sheep.

Keywords: Hu sheep; IGFALS; SNP; Scrotal circumference

Date Created: 20240104 Date Completed: 20240222 Latest Revision: 20240222

20240222

10.1080/10495398.2023.2295928

38174897