Abdoli, R

Mirhoseini, S Z

Ghavi Hossein-Zadeh, N

Zamani, P

Moradi, M H

Ferdosi, M H

Gondro, C

2019-09

First lambing age and lambing interval are among the most important reproductive traits affecting profitability of sheep breeding systems. Genome-wide association studies (GWAS) were performed on estimated breeding values (EBVs) for age at first lambing and the lambing interval between first and second lambing in Lori-Bakhtiari ewes. Animals were genotyped using the Illumina Ovine SNP50 K genotyping array. Two single nucleotide polymorphisms (SNPs) associated with lambing interval were identified on chromosomes 1 and 2 (Bonferroni adjusted P-value<0.05). No SNP associated with first lambing age was detected. SNP s50067.1 on sheep chromosome 2:86798921 is within a candidate gene; ADAMTS like 1 (ADAMTSL1), known to be involved in proteolysis, peptidase activity, biological process and reproductive pathways in mammalian species. No candidate gene was detected for SNP OAR1_57568179.1 on chromosome 1. The results of the present study may provide new insights into the genomic regions involved in reproductive traits of sheep.

Small Ruminant Research, v.178, p. 43-45

0921-4488

https://hdl.handle.net/1959.11/28578

en

Elsevier BV

Genome-wide association study of first lambing age and lambing interval in sheep

Journal Article

Publication