Evolutionary analysis of MID homologs during the transition from homothallic species to heterothallic species in Volvox sect. Volvox (Chlorophyceae)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-30 DOI:10.1111/pre.12538

Shion Yamagishi, Kayoko Yamamoto, Kohei Takahashi, Hiroko Kawai-Toyooka, Shigekatsu Suzuki, Ryo Matsuzaki, Haruyo Yamaguchi, Masanobu Kawachi, Tetsuya Higashiyama, Hisayoshi Nozaki

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Abstract

The diversity and the evolution of mating systems have been studied in various eukaryotes. Volvox sect. Volvox of the volvocine green algae is suitable for evolutionary studies of the transition from homothallic to heterothallic mating systems because this transition is recognized in distal lineages within Volvox sect. Volvox. MID homologs are important in determining the mating type minus and male in heterothallic species of the volvocine algae. However, MID homologs have not been studied within the entire Volvox sect. Volvox. Here, we analyzed MID homologs from almost all taxa of Volvox sect. Volvox and found no significant differences in MID sequences between homothallic species and males of heterothallic species. Furthermore, MID of the male genotype of the heterothallic Volvox rousseletii showed an expression pattern that was almost identical to that of a closely related homothallic species, Volvox ferrisii. Therefore, the function of MID might have been conserved within the ancestral homothallic lineage of Volvox sect. Volvox and during the evolutionary transition of the heterothallic male genotype from the ancestral homothallic species, possibly related to male gametogenesis.

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绿藻科团藻科同质种向异质种过渡过程中MID同源物的进化分析

人们对各种真核生物交配系统的多样性和进化进行了研究。volvoline green algae的Volvox节。volvoline green algae的Volvox节适合于从同属到异属交配系统过渡的进化研究，因为这种过渡在Volvox节的远端谱系中被认可。MID同系物在确定异源藻种的交配类型中具有重要意义。然而，在整个Volvox组中尚未研究MID同源物。在此，我们分析了几乎所有涡旋科分类群的MID同源性，发现同属种和异属种的雄性在MID序列上没有显著差异。此外，异thalic Volvox rousseletii雄性基因型的MID表达模式几乎与近亲同源物种Volvox ferrisii相同。因此，MID的功能可能在涡旋组的祖先同源谱系中以及在从祖先同源物种向异源雄性基因型的进化过渡过程中被保存下来，可能与雄性配子体发生有关。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.