期刊文献

Influence of temperament-related genes on live weight traits of Charolais cows. 收藏

气质相关基因对夏洛来牛奶牛活体重性状的影响。
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作者
GARZA-BRENNER; Estela et al.
DOI
10.37496/rbz4920180121
来源信息
Revista Brasileira de Zootecnia ISSN：1516-3598, 2020年, 49卷, 49期
摘要
We investigated whether a panel of molecular markers previously associated with temperament has an effect on live growth traits. Phenotypic data from 412 Charolais cows categorized according to their age in adult and young cows were used to determine Pearson's correlations between birth (BW), weaning (WW), and yearling live (YW) weight and temperament traits (measured as exit velocity [EV] and temperament score [TS]). For association analysis, selective genotyping of a group of 80 cows identified as the most docile and temperamental were genotyped with a 151-SNP (single-nucleotide polymorphisms) panel of molecular markers previously associated with temperament. Significant Pearson's correlations between birth weight and weaning weight and the two temperament measurements (EV and TS) were observed only in the young cow group. Significant effects of ten SNP on BW and WW were observed. Four markers located on candidate genes for temperament traits also had an effect on birth weight and weaning weight in Charolais cows, which indicates that both traits could be influenced by the same genes.
摘要译文
我们调查了以前与气质相关的一组分子标记物是否对活的生长特性有影响。根据412只夏洛来牛母牛的成年表型数据，根据成年和成年母牛的年龄分类，确定出生体重（BW），断奶体重（WW）和一岁活体重（YW）与气质性状之间的皮尔逊相关性（以出口速度[EV]衡量） ]和气质分数[TS]）。为了进行关联分析，对80头最温顺和性情最强的奶牛进行选择性基因分型，并使用以前与气质有关的分子标记物151-SNP（单核苷酸多态性）进行基因分型。出生体重和断奶体重之间的显着Pearson相关性以及两个气质测量值（EV和TS）仅在幼母牛组中观察到。观察到十个SNP对BW和WW的显着影响。气质性状候选基因上的四个标记对夏洛来牛的出生体重和断奶体重也有影响，表明这两个性状可能受相同基因的影响。
GARZA-BRENNER; Estela et al.. Influence of temperament-related genes on live weight traits of Charolais cows.[J]. Revista Brasileira de Zootecnia, 2020,49(49)