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

Alexandra Rakocevic | Zendy; Samuel Mondy | Zendy; Leı̈la Tirichine | Zendy; Viviane Cosson | Zendy; Lysiane Brocard | Zendy; Anelia Iantcheva | Zendy; Anne Cayrel | Zendy; Benjamin Devier | Zendy; Ghada Ahmed Abu El-Heba | Zendy; Pascal Ratet | Zendy

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

Author(s) -

Alexandra Rakocevic,

Samuel Mondy,

Leı̈la Tirichine,

Viviane Cosson,

Lysiane Brocard,

Anelia Iantcheva,

Anne Cayrel,

Benjamin Devier,

Ghada Ahmed Abu El-Heba,

Pascal Ratet

Publication year - 2009

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.109.138024

Subject(s) - medicago truncatula , biology , medicago , lotus , genome , gene , transposable element , genetics , botany , symbiosis , bacteria

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.

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