相关实验视频

Updated: Jan 17, 2026

Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches

Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches

Published on: October 17, 2019

通过使用多omics方法识别调节肌肉颜色的关键基因和相关遗传变异

Lilin Men¹, Yang Yu², Richun Cai²

¹State Key Laboratory of Animal Biotech Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.

|September 24, 2025

概括

贝塔胡卜素100,101-二氧化酶1 (BCO1) 基因通过调节胡卜素转化,影响肉颜色. BCO1中的特定SNP增加了黄色,并可能促进乳房肉中的脂肪沉积.

科学领域:

动物遗传学动物遗传学
营养生物化学营养生物化学
禽畜科学禽畜科学禽畜科学

背景情况:

肉颜色是影响消费者选择的关键经济特征.
了解肉色的遗传基础对于优化家禽繁殖和肉质量至关重要.
目前对调节肉颜色,特别是黄色的基因的知识有限.

研究的目的:

为了阐明基因和分子机制背后的黄色乳腺肌肉肉色在京兴黄色.
通过多omics方法识别与肉色特征相关的候选基因和遗传变异.

主要方法:

转录学 (RNA测序) 用于分析基因表达模式.
代谢学,以描述代谢变化.
胡卜素含量测量. 胡卜素含量测量.
全基因组关联研究 (GWAS) 以确定与肉色相关的遗传位置 (b*).

主要成果:

在染色体11上发现了一种与乳腺肌肉黄色 (b*) 相关的显著定量特征位置 (QTL).
贝塔胡卜素100,101-二氧化酶1 (BCO1) 基因被确定为这个QTL中的关键候选基因.
较高的BCO1mRNA表达与增加的肉黄色相关.
在BCO1内突中发现一种特定的单核酸多态 (SNP),rs315311588,可降低BCO1表达并增强肉的黄色.
减少的BCO1表达导致了烯转化为视网醇的减少,但增加了黄蛋白含量,导致黄色的肉.
增加黄色素的产生可能与乳腺肌肉中脂肪沉积的增加有关.

结论:

BCO1通过调节胡卜素代谢,在确定胸肌肉颜色方面发挥着至关重要的作用.
BCO1中的SNP rs315311588是一种潜在的因果变异,影响肉的黄色和潜在的肉质特征,如脂肪沉积.
这些发现为有针对性的繁殖策略提供了宝贵的遗传见解,以改善肉的颜色和质量.

关键词:

贝塔-胡卜素氧化酶1 (BCO1) 基因基因肉肉肉肉遗传基础遗传基础肉的黄色是因为肉的黄色.监管机制监管机制

更多相关视频

Reverse Genetic Approach to Identify Regulators of Pigmentation using Zebrafish

Reverse Genetic Approach to Identify Regulators of Pigmentation using Zebrafish

Published on: March 1, 2022

Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue

Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue

Published on: September 8, 2023

相关概念视频

Complementation Tests

Complementation Tests

A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...

Epistasis

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...

Epistasis Analysis

Epistasis Analysis

Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...