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链特异性RNA测序揭示了化后F1的乳腺肌肉和肝脏中的基因表达模式

Jianfei Zhao¹, Meiying Chen¹, Zhengwei Luo¹

¹School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.

Animals : an open access journal from MDPI

|May 11, 2024

概括

的异质化表明,在F1杂交品种中,附加性基因表达是主导的. 在乳腺肌肉和肝脏组织中确定了关键的生长和发育基因和途径,提供了对杂交益处的见解.

科学领域:

动物遗传学动物遗传学
发展生物学发展生物学
量化遗传学量化遗传学

背景情况:

异质化,或混合活力,增强后代对父母的特征,这对于牲畜和作物育种至关重要.
了解杂交的基因表达对于通过杂交来改善经济上重要的特征至关重要.
异质分裂的分子基础在很大程度上是未知的,需要进行详细的遗传研究.

研究的目的:

调查基因表达模式,并在化后的F1杂交物及其父系中识别差异表达基因 (DEG).
通过分析乳腺肌肉和肝脏组织中的基因表达来探索中异位症的基因机制.
为优化家禽杂交策略提供理论基础.

主要方法:

链特异性RNA测序 (ssRNA-seq) 在36只F1杂交的乳腺肌肉和肝脏组织上进行,他们的父母纯种线在28天的年龄.
分析了基因表达模式,包括附加性和非附加性.
基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 路径分析对已识别的DEG进行.

主要成果:

添加性是F1的乳腺肌肉 (80.6%) 和肝脏 (94.2%) 中的主要基因表达模式.
基因实体学分析确定了11个与DEG和非添加基因组的生长和发育相关的生物过程术语,突出了STAT5A和TGFB2等基因.
凯格分析揭示了六种与生长和发育相关的途径,包括PPAR,TGF-β和mTOR信号传递,涉及SLC27A4和GSK3A等基因.

结论:

F1杂交品种的基因表达在很大程度上是附加的,特定的基因和途径显著影响生长和发育.
已识别的基因和途径为的异质化机制提供了分子洞察力.
这项研究为通过更深入地了解对混合性能的遗传贡献来加强家禽杂交计划提供了理论基础.

关键词:

添加性的添加性这些都是肉肉.基因表达模式基因表达模式异质化异质化是什么意思转录组 (transcriptome) 是一个转录组.

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