The emerging biofuel crop Camelina sativa retains a highly undifferentiated hexaploid genome structure

被引：292

作者：

Kagale, Sateesh ^{[1
,2
]}

Koh, Chushin ^{[2
]}

Nixon, John ^{[1
]}

Bollina, Venkatesh ^{[1
]}

Clarke, Wayne E. ^{[1
]}

Tuteja, Reetu ^{[3
]}

Spillane, Charles ^{[3
]}

Robinson, Stephen J. ^{[1
]}

Links, Matthew G. ^{[1
]}

Clarke, Carling ^{[2
]}

Higgins, Erin E. ^{[1
]}

Huebert, Terry ^{[1
]}

Sharpe, Andrew G. ^{[2
]}

Parkin, Isobel A. P. ^{[1
]}

机构：

[1] Agr & Agri Food Canada, Saskatoon Res Ctr, Saskatoon, SK S7N 0X2, Canada

[2] Natl Res Council Canada, Saskatoon, SK S7N 0W9, Canada

[3] Natl Univ Ireland Galway, Sch Nat Sci, Plant & AgriBiosci Ctr PABC, Galway, Ireland

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

关键词：

GENE; SEQUENCE; BRASSICACEAE; RNA; FRACTIONATION; PHYLOGENY; TRAITS; ORIGIN; MODEL; EST;

D O I：

10.1038/ncomms4706

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：

Camelina sativa is an oilseed with desirable agronomic and oil-quality attributes for a viable industrial oil platform crop. Here we generate the first chromosome-scale high-quality reference genome sequence for C. sativa and annotated 89,418 protein-coding genes, representing a whole-genome triplication event relative to the crucifer model Arabidopsis thaliana. C. sativa represents the first crop species to be sequenced from lineage I of the Brassicaceae. The well-preserved hexaploid genome structure of C. sativa surprisingly mirrors those of economically important amphidiploid Brassica crop species from lineage II as well as wheat and cotton. The three genomes of C. sativa show no evidence of fractionation bias and limited expression-level bias, both characteristics commonly associated with polyploid evolution. The highly undifferentiated polyploid genome of C. sativa presents significant consequences for breeding and genetic manipulation of this industrial oil crop.

引用

页数：11

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