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Eragrostis curvula, a Model Species for Diplosporous Apomixis
Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically identical to the mother plant and with the potent...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472828/ https://www.ncbi.nlm.nih.gov/pubmed/34579351 http://dx.doi.org/10.3390/plants10091818 |
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author | Carballo, Jose Zappacosta, Diego Selva, Juan Pablo Caccamo, Mario Echenique, Viviana |
author_facet | Carballo, Jose Zappacosta, Diego Selva, Juan Pablo Caccamo, Mario Echenique, Viviana |
author_sort | Carballo, Jose |
collection | PubMed |
description | Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically identical to the mother plant and with the potential to fix the hybrid vigour from more than one generation, among other advantages. The absence of meiosis and the occurrence of only two rounds of mitosis instead of three during embryo sac development make this model unique and suitable to be transferred to economically important crops. Throughout this review, we highlight the advances in the knowledge of apomixis in E. curvula using different techniques such as cytoembryology, DNA methylation analyses, small-RNA-seq, RNA-seq, genome assembly, and genotyping by sequencing. The main bulk of evidence points out that apomixis is inherited as a single Mendelian factor, and it is regulated by genetic and epigenetic mechanisms controlled by a complex network. With all this information, we propose a model of the mechanisms involved in diplosporous apomixis in this grass. All the genetic and epigenetic resources generated in E. curvula to study the reproductive mode changed its status from an orphan to a well-characterised species. |
format | Online Article Text |
id | pubmed-8472828 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84728282021-09-28 Eragrostis curvula, a Model Species for Diplosporous Apomixis Carballo, Jose Zappacosta, Diego Selva, Juan Pablo Caccamo, Mario Echenique, Viviana Plants (Basel) Review Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically identical to the mother plant and with the potential to fix the hybrid vigour from more than one generation, among other advantages. The absence of meiosis and the occurrence of only two rounds of mitosis instead of three during embryo sac development make this model unique and suitable to be transferred to economically important crops. Throughout this review, we highlight the advances in the knowledge of apomixis in E. curvula using different techniques such as cytoembryology, DNA methylation analyses, small-RNA-seq, RNA-seq, genome assembly, and genotyping by sequencing. The main bulk of evidence points out that apomixis is inherited as a single Mendelian factor, and it is regulated by genetic and epigenetic mechanisms controlled by a complex network. With all this information, we propose a model of the mechanisms involved in diplosporous apomixis in this grass. All the genetic and epigenetic resources generated in E. curvula to study the reproductive mode changed its status from an orphan to a well-characterised species. MDPI 2021-08-31 /pmc/articles/PMC8472828/ /pubmed/34579351 http://dx.doi.org/10.3390/plants10091818 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Carballo, Jose Zappacosta, Diego Selva, Juan Pablo Caccamo, Mario Echenique, Viviana Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title | Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title_full | Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title_fullStr | Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title_full_unstemmed | Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title_short | Eragrostis curvula, a Model Species for Diplosporous Apomixis |
title_sort | eragrostis curvula, a model species for diplosporous apomixis |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472828/ https://www.ncbi.nlm.nih.gov/pubmed/34579351 http://dx.doi.org/10.3390/plants10091818 |
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