相关实验视频

Updated: Jun 19, 2025

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Published on: May 25, 2019

不同亚基因组的变异和相互作用有助于跨基因混合鱼的生长多样性

Li Ren¹, Mengxue Luo¹, Jialin Cui¹

¹State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha 410081, China.

Genomics, proteomics & bioinformatics

|July 23, 2024

概括

跨基因杂交重塑了基因调节,影响了动物的生长. 这项研究揭示了金鱼和鱼基因相互作用如何影响人体体重,为混合活力和遗传特征提供了洞察力.

科学领域:

基因组学就是基因组学.
动物育种动物育种
进化生物学进化生物学

背景情况:

跨基因杂交显著改变基因调节网络,但其对动物生长多样性的影响尚不清楚.
了解这些遗传相互作用对于改善畜牧养殖和理解进化过程至关重要.

研究的目的:

为了研究金鱼 (Carassius auratus red var.) 之间的跨基因杂交的影响. 和普通鱼 (Cyprinus carpio) 的生长特征.
确定候选基因和监管机制,这些基因和监管机制是混合动物生长差异的基础.

主要方法:

混合品种的全基因组和RNA测序.
权重基因相关性网络分析以确定调节生长的基因.
对等位基特异性表达和DNA甲基化模式的分析.

主要成果:

鉴定了3693个候选生长调节基因,在金鱼 (R亚基因组) 和鱼 (C亚基因组) 衍生的亚基因组中具有明显的表达模式.
在C亚基因组中观察到溶液载体家族2成员12 (slc2a12) 的温度依赖表达,影响人体体重.
揭示了主导的跨调节效应和DNA甲基化影响基对生长率的贡献.

结论:

金鱼和鱼之间的杂交导致复杂的遗传相互作用,塑造生长特征.
基因甲基化和跨调节效应在介导这些杂交物种生长的异构中起着重要作用.
这些发现有助于更好地了解杂交动物中的基因调节,异构和等位基因相互作用.

关键词:

副本数量变化的变化独特的等位基调调节增长多样性增长多样性跨基因的杂交方式.线粒体调节的调节

更多相关视频

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

Genotyping and Quantification of In Situ Hybridization Staining in Zebrafish

Genotyping and Quantification of In Situ Hybridization Staining in Zebrafish

Published on: January 28, 2020

相关概念视频

Hybrid Zones

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.

Speciation Rates

Speciation Rates

Formation of Species

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.

What is a Species?

What is a Species?

Gene Flow

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.