MERE1, a Low-Copy-Number Copia-Type Retroelement in Medicago truncatula Active during Tissue Culture

被引：28

作者：

Rakocevic, Alexandra ^{[1
]}

Mondy, Samuel ^{[1
]}

Tirichine, Leila ^{[1
]}

Cosson, Viviane ^{[1
]}

Brocard, Lysiane ^{[1
]}

Iantcheva, Anelia ^{[2
]}

Cayrel, Anne ^{[1
]}

Devier, Benjamin ^{[1
]}

Abu El-Heba, Ghada Ahmed ^{[1
]}

Ratet, Pascal ^{[1
]}

机构：

[1] CNRS, Inst Sci Vegetal, F-91198 Gif Sur Yvette, France

[2] AgroBioinstitute, Sofia 1164, Bulgaria

来源：

PLANT PHYSIOLOGY | 2009年 / 151卷 / 03期

关键词：

TOBACCO TNT1 RETROTRANSPOSON; MODEL LEGUME; DNA METHYLATION; LTR RETROTRANSPOSON; EFFICIENT TRANSFORMATION; EPIGENETIC REGULATION; GRAIN LEGUME; GENE; EXPRESSION; SEQUENCES;

D O I：

10.1104/pp.109.138024

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

We have identified an active Medicago truncatula copia-like retroelement called Medicago RetroElement1-1 (MERE1-1) as an insertion in the symbiotic NSP2 gene. MERE1-1 belongs to a low-copy-number family in the sequenced Medicago genome. These copies are highly related, but only three of them have a complete coding region and polymorphism exists between the long terminal repeats of these different copies. This retroelement family is present in all M. truncatula ecotypes tested but also in other legume species like Lotus japonicus. It is active only during tissue culture in both R108 and Jemalong Medicago accessions and inserts preferentially in genes.

引用

页码：1250 / 1263

页数：14

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