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A 17-bp InDel (rs668420586) within goat CHCHD7 gene located in growth-related QTL affecting body measurement traits.

ABSTRACT: The Coiled-Coil-Helix-Coiled-Coil-Helix Domain Containing 7 (CHCHD7) gene was located in a growth-related major QTL that participated in the process of bone cells metabolism in animals by regulating mitochondrial copper homeostasis and cytochrome C oxidase assembly. Therefore, we speculated that CHCHD7 gene might be involved in animal growth and body size. Herein, we discovered a 17-bp insertion/deletion (indel) within the goat CHCHD7 gene. Then, we detected this variation in Shaanbei White Cashmere (SBWC, n = 1055) goats and Inner Mongolia White Cashmere (IMWC, n = 743) goats (Alathai type) using the mathematical expectation (ME) method. We then analyzed the correlation between these genotypes and goat body measurement traits. The results showed that the minor allelic frequency (MAF) was 0.011 in SBWC, and 0.048 in IMWC. In SBWC and IMWC, the reaction time by ME method was reduced by 36.78% and 27.59%, respectively, compared to the traditional method of screening samples one by one. Moreover, in SBWC goats, the 17-bp indel was significantly associated with body measurement traits (e.g. body height, and body length) in adults. In IMWC goats, the 17-bp indel was correlated with body measurement traits (e.g. body height) in weaners. In SBWC and IMWC goat populations, the body measurement traits of the individuals homozygous for 17-bp indel were higher than those in heterozygous individuals, except for the case of cannon circumference in IMWC weaners. These findings showed that the 17-bp insertion mutation within the goat CHCHD7 gene significantly affected body morphometric traits, and could provide a basis for marker-assisted selection (MAS) breeding of cashmere goats.

SUBMITTER: Li H

PROVIDER: S-EPMC7501373 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:A growing number of studies have shown that members of the ankyrin repeat and suppressors of cytokine signaling (SOCS) box-containing protein (ASB) family are extensively involved in biological processes such as cell growth, tissue development, insulin signaling, ubiquitination, protein degradation, and skeletal muscle membrane protein formation, while the specific biological role of ankyrin-repeat and SOCS box protein 9 (ASB9) remains unclear. In this study, a 21 bp indel in the intron of ASB9 was identified for the first time in 2641 individuals from 11 different breeds and an F2 resource population, and differences were observed among individuals with different genotypes (II, ID, and DD). An association study of a cross-designed F2 resource population revealed that the 21-bp indel was significantly related to growth and carcass traits. The significantly associated growth traits were body weight (BW) at 4, 6, 8, 10, and 12 weeks of age; sternal length (SL) at 4, 8, and 12 weeks of age; body slope length (BSL) at 4, 8, and 12 weeks of age; shank girth (SG) at 4 and 12 weeks of age; tibia length (TL) at 12 weeks of age; and pelvic width (PW) at 4 weeks of age (p < 0.05). This indel was also significantly correlated with carcass traits including semievisceration weight (SEW), evisceration weight (EW), claw weight (CLW), breast muscle weight (BMW), leg weight (LeW), leg muscle weight (LMW), claw rate (CLR), and shedding weight (ShW) (p < 0.05). In commercial broilers, the II genotype was the dominant genotype and underwent extensive selection. Interestingly, the ASB9 gene was expressed at significantly higher levels in the leg muscles of Arbor Acres broilers than those of Lushi chickens, while the opposite was true for the breast muscles. In summary, the 21-bp indel in the ASB9 gene significantly influenced the expression of the ASB9 gene in muscle tissue and was associated with multiple growth and carcass traits in the F2 resource population. These findings suggested that the 21-bp indel within the ASB9 gene could be used in marker-assisted selection breeding for traits related to chicken growth.

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A 17-bp InDel (rs668420586) within goat CHCHD7 gene located in growth-related QTL affecting body measurement traits.

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