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Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae)
Abstract. The genus Pennisetum (Richard, 1805) includes two economically important tropical forage plants: Pennisetum purpureum (Schumacher, 1827) (elephant grass), with 2n = 4x = 28 chromosomes and genomes A'A'BB, and Pennisetum glaucum (Linnaeus, 1753) (pearl millet), with 2n = 2x = 14 c...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Pensoft Publishers
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205489/ https://www.ncbi.nlm.nih.gov/pubmed/25349671 http://dx.doi.org/10.3897/CompCytogen.v8i3.7732 |
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author | dos Reis, Gabriela Barreto Mesquita, Amanda Teixeira Torres, Giovana Augusta Andrade-Vieira, Larissa Fonseca Pereira, Antônio Vander Davide, Lisete Chamma |
author_facet | dos Reis, Gabriela Barreto Mesquita, Amanda Teixeira Torres, Giovana Augusta Andrade-Vieira, Larissa Fonseca Pereira, Antônio Vander Davide, Lisete Chamma |
author_sort | dos Reis, Gabriela Barreto |
collection | PubMed |
description | Abstract. The genus Pennisetum (Richard, 1805) includes two economically important tropical forage plants: Pennisetum purpureum (Schumacher, 1827) (elephant grass), with 2n = 4x = 28 chromosomes and genomes A'A'BB, and Pennisetum glaucum (Linnaeus, 1753) (pearl millet), with 2n = 2x = 14 chromosomes and genomes AA. The genetic proximity between them allows hybrids to be obtained (2n = 3x = 21) that yield forage of higher quality in relation to the parents. The study of genomic relationships provides subsidies for the knowledge about phylogenetic relations and evolution, and is useful in breeding programs seeking gene introgression. Concerning elephant grass and pearl millet, the homeology between the genomes A and A', and between these and the genome B, has been reported by conventional cytogenetic techniques. The objective of the present study was to demonstrate the degree of homeology between these genomes by means of genomic in situ hybridization (GISH). The results confirmed the homeology between the genomes A of pearl millet and A'B of elephant grass, and showed that there are differences in the distribution and proportion of homologous regions after hybridization. Discussion regarding the evolutionary origin of P. purpureum and P. glaucum was also included. |
format | Online Article Text |
id | pubmed-4205489 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Pensoft Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-42054892014-10-27 Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) dos Reis, Gabriela Barreto Mesquita, Amanda Teixeira Torres, Giovana Augusta Andrade-Vieira, Larissa Fonseca Pereira, Antônio Vander Davide, Lisete Chamma Comp Cytogenet Research Article Abstract. The genus Pennisetum (Richard, 1805) includes two economically important tropical forage plants: Pennisetum purpureum (Schumacher, 1827) (elephant grass), with 2n = 4x = 28 chromosomes and genomes A'A'BB, and Pennisetum glaucum (Linnaeus, 1753) (pearl millet), with 2n = 2x = 14 chromosomes and genomes AA. The genetic proximity between them allows hybrids to be obtained (2n = 3x = 21) that yield forage of higher quality in relation to the parents. The study of genomic relationships provides subsidies for the knowledge about phylogenetic relations and evolution, and is useful in breeding programs seeking gene introgression. Concerning elephant grass and pearl millet, the homeology between the genomes A and A', and between these and the genome B, has been reported by conventional cytogenetic techniques. The objective of the present study was to demonstrate the degree of homeology between these genomes by means of genomic in situ hybridization (GISH). The results confirmed the homeology between the genomes A of pearl millet and A'B of elephant grass, and showed that there are differences in the distribution and proportion of homologous regions after hybridization. Discussion regarding the evolutionary origin of P. purpureum and P. glaucum was also included. Pensoft Publishers 2014-08-08 /pmc/articles/PMC4205489/ /pubmed/25349671 http://dx.doi.org/10.3897/CompCytogen.v8i3.7732 Text en Gabriela Barreto dos Reis, Amanda Teixeira Mesquita, Giovana Augusta Torres, Larissa Fonseca Andrade-Vieira, Antônio Vander Pereira, Lisete Chamma Davide http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article dos Reis, Gabriela Barreto Mesquita, Amanda Teixeira Torres, Giovana Augusta Andrade-Vieira, Larissa Fonseca Pereira, Antônio Vander Davide, Lisete Chamma Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title | Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title_full | Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title_fullStr | Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title_full_unstemmed | Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title_short | Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae) |
title_sort | genomic homeology between pennisetum purpureum and pennisetum glaucum (poaceae) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205489/ https://www.ncbi.nlm.nih.gov/pubmed/25349671 http://dx.doi.org/10.3897/CompCytogen.v8i3.7732 |
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