Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.

Numerous CCT domain genes are known to control flowering in plants. They belong to the CONSTANS-like (COL) and PREUDORESPONSE REGULATOR (PRR) gene families, which in addition to a CCT domain possess B-box or response-regulator domains, respectively. Ghd7 is the most recently identified COL gene to h...

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Autores principales:	James Cockram, Thomas Thiel, Burkhard Steuernagel, Nils Stein, Stefan Taudien, Paul C Bailey, Donal M O'Sullivan
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/26b128314a7f41558b49133664d86f20
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spelling	oai:doaj.org-article:26b128314a7f41558b49133664d86f202021-11-18T07:04:24ZGenome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.1932-620310.1371/journal.pone.0045307https://doaj.org/article/26b128314a7f41558b49133664d86f202012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23028921/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Numerous CCT domain genes are known to control flowering in plants. They belong to the CONSTANS-like (COL) and PREUDORESPONSE REGULATOR (PRR) gene families, which in addition to a CCT domain possess B-box or response-regulator domains, respectively. Ghd7 is the most recently identified COL gene to have a proven role in the control of flowering time in the Poaceae. However, as it lacks B-box domains, its inclusion within the COL gene family, technically, is incorrect. Here, we show Ghd7 belongs to a larger family of previously uncharacterized Poaceae genes which possess just a single CCT domain, termed here CCT MOTIF FAMILY (CMF) genes. We molecularly describe the CMF (and related COL and PRR) gene families in four sequenced Poaceae species, as well as in the draft genome assembly of barley (Hordeum vulgare). Genetic mapping of the ten barley CMF genes identified, as well as twelve previously unmapped HvCOL and HvPRR genes, finds the majority map to colinear positions relative to their Poaceae orthologues. Combined inter-/intra-species comparative and phylogenetic analysis of CMF, COL and PRR gene families indicates they evolved prior to the monocot/dicot divergence ∼200 mya, with Poaceae CMF evolution described as the interplay between whole genome duplication in the ancestral cereal, and subsequent clade-specific mutation, deletion and duplication events. Given the proven role of CMF genes in the modulation of cereals flowering, the molecular, phylogenetic and comparative analysis of the Poaceae CMF, COL and PRR gene families presented here provides the foundation from which functional investigation can be undertaken.James CockramThomas ThielBurkhard SteuernagelNils SteinStefan TaudienPaul C BaileyDonal M O'SullivanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 9, p e45307 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q James Cockram Thomas Thiel Burkhard Steuernagel Nils Stein Stefan Taudien Paul C Bailey Donal M O'Sullivan Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
description	Numerous CCT domain genes are known to control flowering in plants. They belong to the CONSTANS-like (COL) and PREUDORESPONSE REGULATOR (PRR) gene families, which in addition to a CCT domain possess B-box or response-regulator domains, respectively. Ghd7 is the most recently identified COL gene to have a proven role in the control of flowering time in the Poaceae. However, as it lacks B-box domains, its inclusion within the COL gene family, technically, is incorrect. Here, we show Ghd7 belongs to a larger family of previously uncharacterized Poaceae genes which possess just a single CCT domain, termed here CCT MOTIF FAMILY (CMF) genes. We molecularly describe the CMF (and related COL and PRR) gene families in four sequenced Poaceae species, as well as in the draft genome assembly of barley (Hordeum vulgare). Genetic mapping of the ten barley CMF genes identified, as well as twelve previously unmapped HvCOL and HvPRR genes, finds the majority map to colinear positions relative to their Poaceae orthologues. Combined inter-/intra-species comparative and phylogenetic analysis of CMF, COL and PRR gene families indicates they evolved prior to the monocot/dicot divergence ∼200 mya, with Poaceae CMF evolution described as the interplay between whole genome duplication in the ancestral cereal, and subsequent clade-specific mutation, deletion and duplication events. Given the proven role of CMF genes in the modulation of cereals flowering, the molecular, phylogenetic and comparative analysis of the Poaceae CMF, COL and PRR gene families presented here provides the foundation from which functional investigation can be undertaken.
format	article
author	James Cockram Thomas Thiel Burkhard Steuernagel Nils Stein Stefan Taudien Paul C Bailey Donal M O'Sullivan
author_facet	James Cockram Thomas Thiel Burkhard Steuernagel Nils Stein Stefan Taudien Paul C Bailey Donal M O'Sullivan
author_sort	James Cockram
title	Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
title_short	Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
title_full	Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
title_fullStr	Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
title_full_unstemmed	Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
title_sort	genome dynamics explain the evolution of flowering time cct domain gene families in the poaceae.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/26b128314a7f41558b49133664d86f20
work_keys_str_mv	AT jamescockram genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT thomasthiel genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT burkhardsteuernagel genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT nilsstein genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT stefantaudien genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT paulcbailey genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae AT donalmosullivan genomedynamicsexplaintheevolutionoffloweringtimecctdomaingenefamiliesinthepoaceae
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Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.

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