Study for evolutionary genomics of adaptive radiation: an analysis of speciation in endemic species of Bonin Islands.

适应性辐射的进化基因组学研究：小笠原群岛特有物种的物种形成分析。

• 批准号: 22370031
• 负责人: ITO Motomi
• 金额: $ 11.98万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22370031/
• 关键词: 適応放散; 種分化; アゼトウナ属; ゲノム; 固有種

In this study, endemic plant species of Bonin Islands with adaptive radiation t have been analysed using the genome technology.Using RNAseq method, Crepidiastrum linguifolium，C。 grandicollum, C。keiskeanum, and Paraixeris denticulate were analyzed with the next generationsequencer. As a result of detecting the genes with significantly differing expression levels between two endemic species of Crepidiastrum, C. linguifolium and C.grandicollum, we found one gene which were the candidate gene for flavonoid biosynthesis. Further, we compared with Paraixeris denticulate, an annual herb of closely related genus of Crepidiastrum, for detecting genes with different of expression level between them. As a result, we detected two genes involved in vascular differentiation.

本研究利用基因组技术对小笠原群岛具有辐射适应性的特有植物进行了分析。grandicollum、大颈弯角藻C. keiskeanum和Paraixeris denticulate进行了分析。通过对两种不同的假茎蕨属特有种间差异表达基因的检测，发现假茎蕨属特有种间差异表达基因的差异表达与假茎蕨属特有种间的差异表达有关。结果表明，在大颈芹和舌叶芹中，发现了一个黄酮类化合物合成的候选基因。并将其与一年生植物细齿拟旱蕨进行了比较，以检测它们之间差异表达的基因。结果，我们检测到两个基因参与血管分化。

项目成果

A Novel Tool for Observation of Biodiversity

观察生物多样性的新工具

• 发表时间: 2012
• 作者: Kato;T.;Jinbo;U.;Ito;M
• 通讯作者: M

Reticulate evolution in the Crepidomanes minutum species complex (Hymenophyllaceae).

• DOI: 10.3732/ajb.1000484
• 发表时间: 2011-11
• 期刊: American journal of botany
• 影响因子: 3
• 作者: Joel H. Nitta;A. Ebihara;M. Ito

AP2-type transcription factors determine stem cell identity in the moss Physcomitrella patens

• DOI: 10.1242/dev.076091
• 发表时间: 2012-09-01
• 期刊: DEVELOPMENT
• 影响因子: 4.6
• 作者: Aoyama, Tsuyoshi;Hiwatashi, Yuji;Hasebe, Mitsuyasu
• 通讯作者: Hasebe, Mitsuyasu

Molecular species identification with rich floristic sampling: DNA barcoding the pteridophyte flora of Japan.

• DOI: 10.1371/journal.pone.0015136
• 发表时间: 2010-12-08
• 期刊: PloS one
• 影响因子: 3.7
• 作者: Ebihara A;Nitta JH;Ito M
• 通讯作者: Ito M

Eco-evolutionary genomic observation for local and global environmental changes

局部和全球环境变化的生态进化基因组观察

• 发表时间: 2013
• 作者: Morinaga;S.-I.;T. Iwasaki;and Y. Suyama
• 通讯作者: and Y. Suyama