Reductive evolution suggested from the complete genome sequence of a plant-pathogenic phytoplasma

被引：337

作者：

Oshima, K

Kakizawa, S

Nishigawa, H

Jung, HY

Wei, W

Suzuki, S

Arashida, R

Nakata, D

Miyata, S

Ugaki, M

Namba, S

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Integrated Biosci, Chiba 2778562, Japan

[2] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Agr & Environm Biol, Bunkyo Ku, Tokyo 1138657, Japan

来源：

NATURE GENETICS | 2004年 / 36卷 / 01期

基金：

日本学术振兴会;

关键词：

D O I：

10.1038/ng1277

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

The minimal gene set essential for life has long been sought. We report the 860-kb genome of the obligate intracellular plant pathogen phytoplasma (Candidatus Phytoplasma asteris, OY strain). The phytoplasma genome encodes even fewer metabolic functions than do mycoplasma genomes. It lacks the pentose phosphate cycle and, more unexpectedly, ATP-synthase subunits, which are thought to be essential for life. This may be the result of reductive evolution as a consequence of life as an intracellular parasite in a nutrient-rich environment.

引用

页码：27 / 29

页数：3

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