Abstract
Simple SummaryGrowth traits are important in goats and can affect their body size and meat production. In this study, the hippocampus abundant transcript 1 (HIAT1) gene, which has been reported as a meat-associated trait in elite goat breeds and a dairy-associated trait in water buffalo, was chosen to detect its correlation with growth traits in goats. The results show that the rs665862918 polymorphism (a 15 bp insertion) in HIAT1 is associated with body length, chest width, chest depth, height at hip cross and heart girth in Shaanbei white cashmere goats (SBWC, n = 1013). Our results reveal that rs665862918 in HIAT1 is relevant to the growth traits of goats and could be used for marker-assisted selection (MAS) as a molecular marker in goat populations.The hippocampus abundant transcript 1 (HIAT1) gene, which was detected by the genome-wide identification of selective sweeps among elite goat breeds and water buffalo, is proposed to play an important role in meat characteristics. Four indels of the HIAT1 gene selected from the NCBI and Ensembl databases were detected via a pooling and sequencing strategy. A 15 bp insertion (rs665862918) in the first intron of HIAT1 was selected and classified on an electrophoresis platform in the Shaanbei white cashmere goat (SBWC) population. The correlation analysis revealed that rs665862918 is significantly highly associated with chest width (p = 1.57 × 10−5), chest depth (p = 8.85 × 10−5), heart girth (p = 1.05 × 10−7), body length (p = 0.022), and height at hip cross (p = 0.023) in the SBWC population (n = 1013). Further analysis revealed that individuals with a genotype insertion/insertion (II) of the rs665862918 locus exhibited better growth trait performance than individuals with an insertion/deletion (ID) or deletion/deletion (DD). These findings verify that HIAT1 affects the body size of goats and that rs665862918 could be a potential molecular marker for growth traits in goat breeding.
Highlights
The goat was the first animal domesticated for consumer production and plays an important role in the food chain
Body height (BH), body length (BL), chest width (CW), chest depth (CD), heart girth (HG), cannon circumference (CC), and height at hip cross (HHC) were recorded as growth traits according to the protocol of Gilbert, et al [23]
The associations between the indel indels of hippocampus abundant transcript 1 (HIAT1) were found to be polymorphic: the 15 bp insertion (NC_030810.1:g.7695 polymorphisms and growth traits were evaluated by one-way analysis of variance (ANOVA) with insACTAGTGGACTTCTT, rs665862918) in intron 1 and the 8 bp insertion
Summary
The goat was the first animal domesticated for consumer production and plays an important role in the food chain. 2 of 9 and prolificacy of goats through pure breeding and the selection of indigenous breeds for skin, meat, and milk traits [1,2]. Growth traits of goats, such as their body length, bodyMolecular height, andbreeding, heart girth,which are critical factors that single nucleotide polymorphisms (SNPs), insertions/deletions (indels), and copy number variations determine goat production [3,4,5]. Molecular breeding, which exploits functional single nucleotide (CNVs) of candidate genes,insertions/deletions is a reproductive(indels), approach improving the growth traits of goats [3,6].
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