Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications

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Paspalum is one of the most important genera of the Poaceae family due to its large number of species and diversity. The subgenus Anachyris comprises six species mainly from South America grouped together by sharing rare spikelet characteristics. A genetic analysis using ISSR markers, compared wit...

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Autores principales: Zilli, Alex Leonel, Hojsgaard, Diego Hernán, Brugnoli, Elsa Andrea, Acuña, Carlos Alberto, Honfi, Ana Isabel, Urbani, Mario Hugo, Quarin, Camilo Luis, Martínez, Eric Javier
Formato: Artículo
Lenguaje:Inglés
Publicado: Elsevier 2022
Materias:
Anachyris
ISSR markers
Paspalum
Phenotypic variation
Taxonomy
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/33810
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-33810
record_format dspace
spelling I48-R184-123456789-338102024-10-03T12:41:01Z Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications Zilli, Alex Leonel Hojsgaard, Diego Hernán Brugnoli, Elsa Andrea Acuña, Carlos Alberto Honfi, Ana Isabel Urbani, Mario Hugo Quarin, Camilo Luis Martínez, Eric Javier Anachyris ISSR markers Paspalum Phenotypic variation Taxonomy Paspalum is one of the most important genera of the Poaceae family due to its large number of species and diversity. The subgenus Anachyris comprises six species mainly from South America grouped together by sharing rare spikelet characteristics. A genetic analysis using ISSR markers, compared with the morpho logical and phenotypic variation observed in each one species, was used to establish genetic relationships among 40 accessions with several ploidy levels, belonging to 5 species ofthe subgenus Anachyris. Fourteen accessions of Paspalum malacophyllum (2x and 4x), 12 of P. simplex (2x, 3x, 4x and 6x), 4 of P. procurrens (2x and 4x), 4 of P. usterii (4x) and 6 of P. volcanensis (4x) were analysed. A total of 227 ISSR loci (98.7% polymorphic) were detected among all accessions, with variable loci number and percentages of poly morphism according to species delimitations. Six main groups were identified by cluster analysis based on Jaccard’s genetic distance and UPGMA, four of which matched all the respective accessions of P. sim plex, P. procurrens, P. usterii and P. volcanensis, while the other two were consistent with two different groups of accessions of P. malacophyllum, one involving most tetraploid accessions, and the other one grouping together a tetraploid and two diploid accessions. The distinctive morphological characteristics and the separate clustering ofthese tetraploid and diploid cytotypes suggestto consider a new multiploid species complex inside the subgenus Anachyris. Both cytotypes of P. procurrens, and the four co-specific cytotypes of P. simplex consistently clustered together forming two specific groups for the two multi ploid taxons. This is in agreement with the existence of high phenotypic similarities between diploid and tetraploid cytotypes of P. procurrens, and among diploid, triploid, tetraploid and hexaploid cytotypes of P. simplex. Since the polyploid cytotypes of these species are reproduced by apomixis, the specific genetic clustering by ISSR markers and morphological and cytological results support the hypothesis that the two multiploid species were originated by autopolyploidy. Our results confirm previous studies suggest ing a monophyletic origin for the subgenus Anachyris and are concordant with previous data regarding genomic homologies and phylogenetic analyses in the genus. 2022-04-08T11:55:40Z 2022-04-08T11:55:40Z 2014-10 Artículo Zilli, Alex Leonel, et al., 2014. Genetic relationship among paspalum species of the subgenus anachyris: taxonomic and evolutionary implications. Flora. Berlín: Elsevier, vol. 209, no. 10, p. 604-612. ISSN 0367-2530. 0367-2530 http://repositorio.unne.edu.ar/handle/123456789/33810 eng https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.20173 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Elsevier Flora, 2014, vol. 209, no. 10, p. 604-612.
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 Anachyris
ISSR markers
Paspalum
Phenotypic variation
Taxonomy
spellingShingle Anachyris
ISSR markers
Paspalum
Phenotypic variation
Taxonomy
Zilli, Alex Leonel
Hojsgaard, Diego Hernán
Brugnoli, Elsa Andrea
Acuña, Carlos Alberto
Honfi, Ana Isabel
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
topic_facet Anachyris
ISSR markers
Paspalum
Phenotypic variation
Taxonomy
description Paspalum is one of the most important genera of the Poaceae family due to its large number of species and diversity. The subgenus Anachyris comprises six species mainly from South America grouped together by sharing rare spikelet characteristics. A genetic analysis using ISSR markers, compared with the morpho logical and phenotypic variation observed in each one species, was used to establish genetic relationships among 40 accessions with several ploidy levels, belonging to 5 species ofthe subgenus Anachyris. Fourteen accessions of Paspalum malacophyllum (2x and 4x), 12 of P. simplex (2x, 3x, 4x and 6x), 4 of P. procurrens (2x and 4x), 4 of P. usterii (4x) and 6 of P. volcanensis (4x) were analysed. A total of 227 ISSR loci (98.7% polymorphic) were detected among all accessions, with variable loci number and percentages of poly morphism according to species delimitations. Six main groups were identified by cluster analysis based on Jaccard’s genetic distance and UPGMA, four of which matched all the respective accessions of P. sim plex, P. procurrens, P. usterii and P. volcanensis, while the other two were consistent with two different groups of accessions of P. malacophyllum, one involving most tetraploid accessions, and the other one grouping together a tetraploid and two diploid accessions. The distinctive morphological characteristics and the separate clustering ofthese tetraploid and diploid cytotypes suggestto consider a new multiploid species complex inside the subgenus Anachyris. Both cytotypes of P. procurrens, and the four co-specific cytotypes of P. simplex consistently clustered together forming two specific groups for the two multi ploid taxons. This is in agreement with the existence of high phenotypic similarities between diploid and tetraploid cytotypes of P. procurrens, and among diploid, triploid, tetraploid and hexaploid cytotypes of P. simplex. Since the polyploid cytotypes of these species are reproduced by apomixis, the specific genetic clustering by ISSR markers and morphological and cytological results support the hypothesis that the two multiploid species were originated by autopolyploidy. Our results confirm previous studies suggest ing a monophyletic origin for the subgenus Anachyris and are concordant with previous data regarding genomic homologies and phylogenetic analyses in the genus.
format Artículo
author Zilli, Alex Leonel
Hojsgaard, Diego Hernán
Brugnoli, Elsa Andrea
Acuña, Carlos Alberto
Honfi, Ana Isabel
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
author_facet Zilli, Alex Leonel
Hojsgaard, Diego Hernán
Brugnoli, Elsa Andrea
Acuña, Carlos Alberto
Honfi, Ana Isabel
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
author_sort Zilli, Alex Leonel
title Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
title_short Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
title_full Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
title_fullStr Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
title_full_unstemmed Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
title_sort genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
publisher Elsevier
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/33810
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