Inference of evolution of vertebrate genomes and chromosomes from genomic and cytogenetic analyses using amphibians
Inference of evolution of vertebrate genomes and chromosomes from genomic and cytogenetic analyses using amphibians
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DOI：
10.11352/scr.24.3
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Y. Uno
中科院分区：
文献类型：
--
作者：
Y. Uno
两栖动物是最早适应陆地生活的脊椎动物，大约在 3.5 亿年前 (Mya) 出现，四足动物（两栖动物、爬行动物、鸟类和哺乳动物）的共同祖先在 410 Mya 左右从射线鳍鱼类分化出来，因此是了解脊椎动物进化的重要模型动物。迄今为止，已有许多两栖动物的细胞遗传学报道。此外，细胞遗传学和基因组分析技术的最新改进有助于加速两栖动物细胞遗传学和基因组数据的积累。根据最近使用两栖动物进行的基因组和细胞遗传学分析，我回顾了两栖动物和整个脊椎动物的核型和染色体进化，包括性染色体、多倍体和微染色体的起源。
Amphibians, which first adapted to terrestrial life in vertebrates, appeared around 350 million years ago (Mya) after the common ancestors of tetrapods (amphibians, reptiles, birds, and mammals) diverged from ray-finned fishes around 410 Mya, and are therefore important model animals for understanding vertebrate evolution. To date, there are many cytogenetic reports of amphibians. Moreover, recent improvements in techniques for cytogenetic and genomic analyses help accelerate the accumulation of the cytogenetic and genomic data from amphibians. Inferred from recent genomic and cytogenetic analyses using amphibians, I review karyotype and chromosome evolution, including sex chromosomes, polyploidy, and origins of microchromosomes, in not only amphibians but also entire vertebrates.