Biology and genome of a newly discovered sibling species of Caenorhabditis elegans

被引：75

作者：

Kanzaki, Natsumi ^{[1
,10
]}

Tsai, Isheng J. ^{[2
]}

Tanaka, Ryusei ^{[3
]}

Hunt, Vicky L. ^{[3
]}

Liu, Dang ^{[2
]}

Tsuyama, Kenji ^{[4
]}

Maeda, Yasunobu ^{[3
]}

Namai, Satoshi ^{[4
]}

Kumagai, Ryohei ^{[4
]}

Tracey, Alan ^{[5
]}

Holroyd, Nancy ^{[5
]}

Doyle, Stephen R. ^{[5
]}

Woodruff, Gavin C. ^{[1
,11
]}

Murase, Kazunori ^{[3
]}

Kitazume, Hiromi ^{[3
]}

Chai, Cynthia ^{[6
,7
]}

Akagi, Allison ^{[6
,7
]}

Panda, Oishika ^{[8
,9
]}

Ke, Huei-Mien ^{[2
]}

Schroeder, Frank C. ^{[8
,9
]}

Wang, John ^{[2
]}

Berriman, Matthew ^{[5
]}

Sternberg, Paul W. ^{[6
,7
]}

Sugimoto, Asako ^{[4
]}

Kikuchi, Taisei ^{[3
]}

机构：

[1] Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan

[2] Acad Sinica, Biodivers Res Ctr, Taipei 11529, Taiwan

[3] Univ Miyazaki, Fac Med, Miyazaki 8891692, Japan

[4] Tohoku Univ, Grad Sch Life Sci, Lab Dev Dynam, Sendai, Miyagi 9808577, Japan

[5] Wellcome Trust Sanger Inst, Wellcome Genome Campus, Hinxton CB10 1SA, England

[6] CALTECH, HHMI, Pasadena, CA 91125 USA

[7] CALTECH, Div Biol & Biol Engn, Pasadena, CA 91125 USA

[8] Cornell Univ, Boyce Thompson Inst, Ithaca, NY 14853 USA

[9] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

[10] Forestry & Forest Prod Res Inst, Kansai Res Ctr, Fushimi Ku, 68 Nagaikyutaroh, Kyoto 6120855, Japan

[11] Univ Oregon, Dept Biol, Inst Ecol & Evolut, Eugene, OR 97403 USA

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

基金：

英国惠康基金; 英国生物技术与生命科学研究理事会; 日本学术振兴会;

关键词：

D O I：

10.1038/s41467-018-05712-5

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A 'sibling' species of the model organism Caenorhabditis elegans has long been sought for use in comparative analyses that would enable deep evolutionary interpretations of biological phenomena. Here, we describe the first sibling species of C. elegans, C. inopinata n. sp., isolated from fig syconia in Okinawa, Japan. We investigate the morphology, developmental processes and behaviour of C. inopinata, which differ significantly from those of C. elegans. The 123-Mb C. inopinata genome was sequenced and assembled into six nuclear chromosomes, allowing delineation of Caenorhabditis genome evolution and revealing unique characteristics, such as highly expanded transposable elements that might have contributed to the genome evolution of C. inopinata. In addition, C. inopinata exhibits massive gene losses in chemoreceptor gene families, which could be correlated with its limited habitat area. We have developed genetic and molecular techniques for C. inopinata; thus C. inopinata provides an exciting new platform for comparative evolutionary studies.

引用

页数：12

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