Three Families of LTR Retrotransposons are Present in the Genome of the Choanoflagellate Monosiga brevicollis

Martin Carr; Michaela Nelson; Barry S.C. Leadbeater; Sandra L. Baldauf

doi:10.1016/j.protis.2008.05.001

Three Families of LTR Retrotransposons are Present in the Genome of the Choanoflagellate Monosiga brevicollis

Martin Carr, Michaela Nelson, Barry S.C. Leadbeater, Sandra L. Baldauf

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The choanoflagellates are a ubiquitous group of nanoflagellates and the sister group of Metazoa. Examination of the initial draft version of the first choanoflagellate genome, that of Monosiga brevicollis, reveals the presence of three novel families of long terminal repeat (LTR) retrotransposons and an apparent absence of non-LTR retrotransposons and transposons. One of the newly discovered LTR families falls in the chromovirus clade of the Ty3/gypsy group while the other two families are closely related members of the Ty1/copia group. Examination of EST sequences and nucleotide analyses show that all three families are transcriptionally active and potentially functional within the genome of M. brevicollis.

Original language	English
Pages (from-to)	579-590
Number of pages	12
Journal	Protist
Volume	159
Issue number	4
Early online date	14 Jul 2008
DOIs	https://doi.org/10.1016/j.protis.2008.05.001
Publication status	Published - 21 Oct 2008
Externally published	Yes

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title = "Three Families of LTR Retrotransposons are Present in the Genome of the Choanoflagellate Monosiga brevicollis",

abstract = "The choanoflagellates are a ubiquitous group of nanoflagellates and the sister group of Metazoa. Examination of the initial draft version of the first choanoflagellate genome, that of Monosiga brevicollis, reveals the presence of three novel families of long terminal repeat (LTR) retrotransposons and an apparent absence of non-LTR retrotransposons and transposons. One of the newly discovered LTR families falls in the chromovirus clade of the Ty3/gypsy group while the other two families are closely related members of the Ty1/copia group. Examination of EST sequences and nucleotide analyses show that all three families are transcriptionally active and potentially functional within the genome of M. brevicollis.",

keywords = "choanoflagellates, chromovirus, LTR retrotransposons, Monosiga brevicollis, opisthokonta, Ty1/copia",

author = "Martin Carr and Michaela Nelson and Leadbeater, {Barry S.C.} and Baldauf, {Sandra L.}",

note = "Funding Information: This work was supported by a Biotechnology and Biological Sciences Research Council Grant BB/C514990/1 awarded to S.L.B. and B.S.C.L. We thank Casey Bergman and Deborah Charlesworth for discussion and John Brookfield for useful comments on the manuscript. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.",

year = "2008",

month = oct,

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doi = "10.1016/j.protis.2008.05.001",

language = "English",

volume = "159",

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T1 - Three Families of LTR Retrotransposons are Present in the Genome of the Choanoflagellate Monosiga brevicollis

AU - Carr, Martin

AU - Nelson, Michaela

AU - Leadbeater, Barry S.C.

AU - Baldauf, Sandra L.

N1 - Funding Information: This work was supported by a Biotechnology and Biological Sciences Research Council Grant BB/C514990/1 awarded to S.L.B. and B.S.C.L. We thank Casey Bergman and Deborah Charlesworth for discussion and John Brookfield for useful comments on the manuscript. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.

PY - 2008/10/21

Y1 - 2008/10/21

N2 - The choanoflagellates are a ubiquitous group of nanoflagellates and the sister group of Metazoa. Examination of the initial draft version of the first choanoflagellate genome, that of Monosiga brevicollis, reveals the presence of three novel families of long terminal repeat (LTR) retrotransposons and an apparent absence of non-LTR retrotransposons and transposons. One of the newly discovered LTR families falls in the chromovirus clade of the Ty3/gypsy group while the other two families are closely related members of the Ty1/copia group. Examination of EST sequences and nucleotide analyses show that all three families are transcriptionally active and potentially functional within the genome of M. brevicollis.

AB - The choanoflagellates are a ubiquitous group of nanoflagellates and the sister group of Metazoa. Examination of the initial draft version of the first choanoflagellate genome, that of Monosiga brevicollis, reveals the presence of three novel families of long terminal repeat (LTR) retrotransposons and an apparent absence of non-LTR retrotransposons and transposons. One of the newly discovered LTR families falls in the chromovirus clade of the Ty3/gypsy group while the other two families are closely related members of the Ty1/copia group. Examination of EST sequences and nucleotide analyses show that all three families are transcriptionally active and potentially functional within the genome of M. brevicollis.

KW - choanoflagellates

KW - chromovirus

KW - LTR retrotransposons

KW - Monosiga brevicollis

KW - opisthokonta

KW - Ty1/copia

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U2 - 10.1016/j.protis.2008.05.001

DO - 10.1016/j.protis.2008.05.001

M3 - Article

C2 - 18621583

AN - SCOPUS:52149121148

VL - 159

SP - 579

EP - 590

JO - Protist

JF - Protist

SN - 1434-4610

IS - 4

ER -

Three Families of LTR Retrotransposons are Present in the Genome of the Choanoflagellate Monosiga brevicollis

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