Harnessing apomictic reproduction in grasses : what we have learned from paspalum

Background: Apomixis is an alternative route of plant reproduction that produces individuals genetically identical to the mother plant through seeds. Apomixis is desirable in agriculture, because it guarantees the perpetuation of super ior genotypes (i.e. heterotic hybrid seeds) by self-seeding with...

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Autores principales:	Ortíz, Juan Pablo Amelio, Quarin, Camilo Luis, Pessino, Silvina Claudia, Acuña, Carlos Alberto, Martínez, Eric Javier, Espinoza, Francisco, Hojsgaard, Diego Hernán, Sartor, María Esperanza, Cáceres, María Emilia, Pupilli, Fulvio
Formato:	Artículo
Lenguaje:	Inglés
Publicado:	Oxford University Press 2022
Materias:	Apomixis Comparative mapping Molecular markers Paspalum Transcriptomic analysis
Acceso en línea:	http://repositorio.unne.edu.ar/handle/123456789/37736
Aporte de:	RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste

id	I48-R184-123456789-37736
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spelling	I48-R184-123456789-377362024-10-03T12:52:56Z Harnessing apomictic reproduction in grasses : what we have learned from paspalum Ortíz, Juan Pablo Amelio Quarin, Camilo Luis Pessino, Silvina Claudia Acuña, Carlos Alberto Martínez, Eric Javier Espinoza, Francisco Hojsgaard, Diego Hernán Sartor, María Esperanza Cáceres, María Emilia Pupilli, Fulvio Apomixis Comparative mapping Molecular markers Paspalum Transcriptomic analysis Background: Apomixis is an alternative route of plant reproduction that produces individuals genetically identical to the mother plant through seeds. Apomixis is desirable in agriculture, because it guarantees the perpetuation of super ior genotypes (i.e. heterotic hybrid seeds) by self-seeding without loss of hybrid vigour. The Paspalum genus, an archetypal model system for mining apomixis gene(s), is composed of about 370 species that have extremely diverse reproductive systems, including self-incompatibility, self-fertility, full sexual reproduction, and facultative or obligate apomixis. Barriers to interspecific hybridization are relaxed in this genus, allowing the production of new hybrids from many different parental combinations. Paspalum is also tolerant to various parental genome contribu tionsto the endosperm, allowing analyses of how sexually reproducing crop species might escape from dosage effects in the endosperm. Scope: In this article, the available literature characterizing apomixis in Paspalum spp. and its use in breeding is critically reviewed. In particular, a comparison is made across species of the structure and function of the genomic region controlling apomixis in order to identify a common core region shared by all apomictic Paspalum species and where apomixis genes are likely to be localized. Candidate genes are discussed, either as possible genetic determinants (including homologs to signal transduction and RNA methylation genes) or as downstream factors (such as cell-to-cell signalling and auxin response genes) depending, respectively, on their co-segregation with apomixis or less. Strategies to validate the role of candidate genes in apomictic process are also discussed, with special emphasis on plant transformation in natural apomictic species. 2022-04-21T12:52:29Z 2022-04-21T12:52:29Z 2013-09 Artículo Ortíz, Juan Pablo Amelio, et al., 2013. Harnessing apomictic reproduction in grasses: what we have learned from paspalum. Annals of Botany. Oxford: Oxford University Press, vol. 112, no. 5, p. 767-787. ISSN-e 1095-8290. 0305-7364 http://repositorio.unne.edu.ar/handle/123456789/37736 eng https://academic.oup.com/aob/article/112/5/767/139898 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Oxford University Press Annals of Botany, 2013, vol. 112, no. 5, p. 767-787.
institution	Universidad Nacional del Nordeste
institution_str	I-48
repository_str	R-184
collection	RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language	Inglés
topic	Apomixis Comparative mapping Molecular markers Paspalum Transcriptomic analysis
spellingShingle	Apomixis Comparative mapping Molecular markers Paspalum Transcriptomic analysis Ortíz, Juan Pablo Amelio Quarin, Camilo Luis Pessino, Silvina Claudia Acuña, Carlos Alberto Martínez, Eric Javier Espinoza, Francisco Hojsgaard, Diego Hernán Sartor, María Esperanza Cáceres, María Emilia Pupilli, Fulvio Harnessing apomictic reproduction in grasses : what we have learned from paspalum
topic_facet	Apomixis Comparative mapping Molecular markers Paspalum Transcriptomic analysis
description	Background: Apomixis is an alternative route of plant reproduction that produces individuals genetically identical to the mother plant through seeds. Apomixis is desirable in agriculture, because it guarantees the perpetuation of super ior genotypes (i.e. heterotic hybrid seeds) by self-seeding without loss of hybrid vigour. The Paspalum genus, an archetypal model system for mining apomixis gene(s), is composed of about 370 species that have extremely diverse reproductive systems, including self-incompatibility, self-fertility, full sexual reproduction, and facultative or obligate apomixis. Barriers to interspecific hybridization are relaxed in this genus, allowing the production of new hybrids from many different parental combinations. Paspalum is also tolerant to various parental genome contribu tionsto the endosperm, allowing analyses of how sexually reproducing crop species might escape from dosage effects in the endosperm. Scope: In this article, the available literature characterizing apomixis in Paspalum spp. and its use in breeding is critically reviewed. In particular, a comparison is made across species of the structure and function of the genomic region controlling apomixis in order to identify a common core region shared by all apomictic Paspalum species and where apomixis genes are likely to be localized. Candidate genes are discussed, either as possible genetic determinants (including homologs to signal transduction and RNA methylation genes) or as downstream factors (such as cell-to-cell signalling and auxin response genes) depending, respectively, on their co-segregation with apomixis or less. Strategies to validate the role of candidate genes in apomictic process are also discussed, with special emphasis on plant transformation in natural apomictic species.
format	Artículo
author	Ortíz, Juan Pablo Amelio Quarin, Camilo Luis Pessino, Silvina Claudia Acuña, Carlos Alberto Martínez, Eric Javier Espinoza, Francisco Hojsgaard, Diego Hernán Sartor, María Esperanza Cáceres, María Emilia Pupilli, Fulvio
author_facet	Ortíz, Juan Pablo Amelio Quarin, Camilo Luis Pessino, Silvina Claudia Acuña, Carlos Alberto Martínez, Eric Javier Espinoza, Francisco Hojsgaard, Diego Hernán Sartor, María Esperanza Cáceres, María Emilia Pupilli, Fulvio
author_sort	Ortíz, Juan Pablo Amelio
title	Harnessing apomictic reproduction in grasses : what we have learned from paspalum
title_short	Harnessing apomictic reproduction in grasses : what we have learned from paspalum
title_full	Harnessing apomictic reproduction in grasses : what we have learned from paspalum
title_fullStr	Harnessing apomictic reproduction in grasses : what we have learned from paspalum
title_full_unstemmed	Harnessing apomictic reproduction in grasses : what we have learned from paspalum
title_sort	harnessing apomictic reproduction in grasses : what we have learned from paspalum
publisher	Oxford University Press
publishDate	2022
url	http://repositorio.unne.edu.ar/handle/123456789/37736
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Harnessing apomictic reproduction in grasses : what we have learned from paspalum

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