Growth traits

Polymorphisms in a myostatin gene and associations with growth in a hybrid of Culter alburnus and Ancherythroculter nigrocauda

L. Cheng and Sun, Y. H., Polymorphisms in a myostatin gene and associations with growth in a hybrid of Culter alburnus and Ancherythroculter nigrocauda, vol. 14, pp. 5615-5620, 2015.

Myostatin (MSTN) is a member of the transforming growth factor-β superfamily that negatively regulates skeletal muscle development and growth. In the present study, partial genomic frag­ments of MSTN were screened for single nucleotide polymorphisms (SNPs) in a hybrid of Culter alburnus (♀) x Ancherythroculter nigro­cauda (♂) individuals from a commercial hatchery population, and two non-synonymous SNPs (c.6T>C and c.162G>A) and two synonymous SNPs (c.152G>A and c.155G>A) in exon 2 were identified.

Adjacent SNPs in the transcriptional regulatory region of the FADS2 gene associated with fatty acid and growth traits in chickens

S. K. Zhu, Tian, Y. D., Zhang, S., Chen, Q. X., Wang, Q. Y., Han, R. L., and Kang, X. T., Adjacent SNPs in the transcriptional regulatory region of the FADS2 gene associated with fatty acid and growth traits in chickens, vol. 13, pp. 3329-3336, 2014.

Delta-6 fatty acid desaturases are rate-limiting desaturases involved in metabolic processes of fatty acids, and they are encoded by the FADS2 gene. In the current study, an F2 resource population of Gushi chickens crossed with Anak broilers was used to investigate the genetic effects of the chicken FADS2.

Characteristics of growth traits and their effects on body weight of G1 individuals in the mud crab (Scylla paramamosain)

W. Jiang, Ma, H. Y., Ma, C. Y., Li, S. J., Liu, Y. X., Qiao, Z. G., and Ma, L. B., Characteristics of growth traits and their effects on body weight of G1 individuals in the mud crab (Scylla paramamosain), vol. 13, pp. 6050-6059, 2014.

The mud crab (Scylla paramamosain) is considered a potentially important marine crab species for selective breeding. Here, we first examined sex ratio and differences in 16 growth traits between females and males in a G1 population of S. paramamosain, and we then analyzed the correlation between these growth traits and their effects on body weight (BW). Of these growth traits, nine were significantly different between sexes. In females, the correlation coefficients in all trait pairs ranged from 0.524 to 0.997.

Genome-wide association study on growth traits in Colombian creole breeds and crossbreeds with Zebu cattle

R. Martínez, Gómez, Y., and Rocha, J. F. M., Genome-wide association study on growth traits in Colombian creole breeds and crossbreeds with Zebu cattle, vol. 13, pp. 6420-6432, 2014.

Whole genome selection represents an important tool for improving parameters related to the production of livestock. In order to build genomic selection indexes within a particular breed, it is important to identify polymorphisms that have the most significant association with a desired trait. A genome-wide marker association approach based on the Illumina BovineSNP50 BeadChipTM was used to identify genomic regions affecting birth weight (BW), weaning weight (WW), and daily weight gain (DWG) in purebred and crossbred creole cattle populations.

Association between a polymorphism in intron 3 of the bovine growth hormone gene and growth traits in Holstein heifers in Antioquia

J. Arango, Echeverri, J. J., and López, A., Association between a polymorphism in intron 3 of the bovine growth hormone gene and growth traits in Holstein heifers in Antioquia, vol. 13, pp. 6191-6199, 2014.

The aim of this study was to determine the association between a polymorphism in intron 3 of the bovine growth hormone (BGH) gene and growth traits related to the start of the reproductive life of Holstein heifers. This research was conducted using 480 Holstein heifers belonging to eight herds in three municipalities in the Department of Antioquia (Colombia).

Study of the correlation between GH gene polymorphism and growth traits in sheep

J. L. Jia, Zhang, L. P., Wu, J. P., Ha, Z. J., and Li, W. W., Study of the correlation between GH gene polymorphism and growth traits in sheep, vol. 13, pp. 7190-7200, 2014.

The growth hormone gene plays an important role in the physiological function of an organism. The current study aimed to investigate the correlation between polymorphisms in the 5ꞌ regulatory region, exon 4, and 3ꞌ untranslated region (UTR) of the sheep GH gene and sheep growth traits. The DNA from 510 adult sheep was analyzed by DNA sequencing and polymerase chain reaction single-strand conformation polymorphism.

(Co)variance components and genetic parameters for growth traits in Arabi sheep using different animal models

B. Shokrollahi and Baneh, H., (Co)variance components and genetic parameters for growth traits in Arabi sheep using different animal models, vol. 11, pp. 305-314, 2012.

The objective of the present study was to estimate genetic parameters for body weight at different ages in Arabi sheep using data collected from 1999 to 2009. Investigated traits consisted of birth weight (N = 2776), weaning weight (N = 2002) and weight at six months of age (N = 1885). The data were analyzed using restricted maximum likelihood analysis, by fitting univariate and multivariate animal models. All three weight traits were significantly influenced by birth year, sex and birth type. Age of dam only significantly affected birth weight.

Analysis of genetic diversity in Larix gmelinii (Pinaceae) with RAPD and ISSR markers

L. Zhang, Zhang, H. G., and Li, X. F., Analysis of genetic diversity in Larix gmelinii (Pinaceae) with RAPD and ISSR markers, vol. 12. pp. 196-207, 2013.

Dahurian larch (Larix gmelinii), a deciduous conifer, is the northernmost tree, native to eastern Siberia and nearby regions of China. We used growth traits and molecular markers to assess genetic variation in different L. gmelinii growing regions; 105 individual samples were collected from seven regions of the Qingshan Forestry Centre, Heilongjiang Province, China. The greatest genetic regional variation was seen in the Youhao area, based on coefficients of variation for tree height, diameter and volume (14.73, 28.25, and 55.27%, respectively).

Polymorphisms of the myostatin gene (MSTN) and its relationship with growth traits in goat breeds

Z. J. Zhang, Ling, Y. H., Wang, L. J., Hang, Y. F., Guo, X. F., Zhang, Y. H., Ding, J. P., and Zhang, X. R., Polymorphisms of the myostatin gene (MSTN) and its relationship with growth traits in goat breeds, vol. 12. pp. 965-971, 2013.

Mutations in the myostatin (MSTN) gene can inactivate its expression and result in a non-functional protein, which leads to dramatic muscularity and a “double-muscling” phenomenon in many species. Using gene sequencing and polymerase chain reaction-single-strand conformation polymorphism methods, polymorphisms of the MSTN gene were investigated as a candidate marker for growth in 288 goats. The results showed 2 novel single nucleotide polymorphisms: DQ167575 g.197G>A and 345A>T.

Insulin-like growth factor I gene polymorphism associated with growth and carcass traits in Thai synthetic chickens

N. Promwatee, Laopaiboon, B., Vongpralub, T., Phasuk, Y., Kunhareang, S., Boonkum, W., and Duangjinda, M., Insulin-like growth factor I gene polymorphism associated with growth and carcass traits in Thai synthetic chickens, vol. 12, pp. 4332-4341, 2013.

Four Thai synthetic chicken lines (Kaen Thong, Khai Mook Esarn, Soi Nin, and Soi Pet) originated from Thai native and exotic commercial chickens were evaluated for their growth and carcass traits with the purpose of developing a Thai broiler breeding program. Insulin-like growth factor I (IGF-I) gene is known to play an important role in growth, proliferation and differentiation. Consequently, we investigated the possibility of using the IGF-I gene for marker-assisted selection in Thai synthetic chickens.

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