Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species

Uniparental reproduction, the capacity of an individual to produce offspring autonomously, is expected to facilitate range expansion of populations. Paspalum spp. reproduce uniparentally by sexual (self-fertility) and asexual (apomixis) reproduction and biparentally by sexual (self-sterility) reprod...

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Autores principales: Reutemann, Anna Verena, Martínez, Eric Javier, Schedler, Mara, Daviña, Julio Rubén, Hojsgaard, Diego Hernán, Honfi, Ana Isabel
Formato: Artículo
Lenguaje:Inglés
Publicado: Wiley Blackwell Publishing, Inc 2025
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/59954
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RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
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spelling I48-R184-123456789-599542025-12-15T14:31:15Z Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species Reutemann, Anna Verena Martínez, Eric Javier Schedler, Mara Daviña, Julio Rubén Hojsgaard, Diego Hernán Honfi, Ana Isabel Uniparental reproduction, the capacity of an individual to produce offspring autonomously, is expected to facilitate range expansion of populations. Paspalum spp. reproduce uniparentally by sexual (self-fertility) and asexual (apomixis) reproduction and biparentally by sexual (self-sterility) reproduction. We evaluated the relationship between contrasting reproductive strategies (uni- and biparentality) and their impact on the colonizing ability and geographical range sizes of populations. We determined the cytotype composition of 16 populations of P. indecorum, P. cromyorhizon, P. pumilum and P. maculosum and assessed the sexual (self-fertile and self-sterile) and apomictic proportions by cyto-embryological analyses, fertility rates and seed flow cytometry. Data obtained regarding reproductive modes were compared to the distribution range of each cytotype and species. Sexual diploids with moderate degrees of self-fertility and mixed pollination syndromes showed wider distribution ranges than self-sterile diploids. In sexual diploids, increased rates of self-fertility relate to larger distribution areas. In agamic complexes, self-fertility reduces the differences in range sizes between biparental diploids and uniparental tetraploids. In such complexes, the range size of diploid cytotypes explains the range size and dispersal of apomictic tetraploids. Thus, uniparental reproduction via self-fertility and apomixis describes patterns of geographical parthenogenesis in South American species. 2025-12-15T14:21:34Z 2025-12-15T14:21:34Z 2022 Artículo Reutemann, Anna Verena, et al., 2022. Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species. Reino Unido: Wiley Blackwell Publishing, Inc, vol. 200, no. 4, p. 563-585. E-ISSN 1095-8339. 0024-4074 http://repositorio.unne.edu.ar/handle/123456789/59954 eng https://academic.oup.com/botlinnean/search-results?page=1&q=Uniparentality%3A%20advantages%20for%20range%20expansion%20in%20diploid%20and%20diploid-autopolyploid%20species&fl_SiteID=5596&SearchSourceType=1&allJournals=1 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 563-585 application/pdf Wiley Blackwell Publishing, Inc Botanical Journal of the Linnean Society, 2022, vol. 200, no. 4, p.563-585.
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
description Uniparental reproduction, the capacity of an individual to produce offspring autonomously, is expected to facilitate range expansion of populations. Paspalum spp. reproduce uniparentally by sexual (self-fertility) and asexual (apomixis) reproduction and biparentally by sexual (self-sterility) reproduction. We evaluated the relationship between contrasting reproductive strategies (uni- and biparentality) and their impact on the colonizing ability and geographical range sizes of populations. We determined the cytotype composition of 16 populations of P. indecorum, P. cromyorhizon, P. pumilum and P. maculosum and assessed the sexual (self-fertile and self-sterile) and apomictic proportions by cyto-embryological analyses, fertility rates and seed flow cytometry. Data obtained regarding reproductive modes were compared to the distribution range of each cytotype and species. Sexual diploids with moderate degrees of self-fertility and mixed pollination syndromes showed wider distribution ranges than self-sterile diploids. In sexual diploids, increased rates of self-fertility relate to larger distribution areas. In agamic complexes, self-fertility reduces the differences in range sizes between biparental diploids and uniparental tetraploids. In such complexes, the range size of diploid cytotypes explains the range size and dispersal of apomictic tetraploids. Thus, uniparental reproduction via self-fertility and apomixis describes patterns of geographical parthenogenesis in South American species.
format Artículo
author Reutemann, Anna Verena
Martínez, Eric Javier
Schedler, Mara
Daviña, Julio Rubén
Hojsgaard, Diego Hernán
Honfi, Ana Isabel
spellingShingle Reutemann, Anna Verena
Martínez, Eric Javier
Schedler, Mara
Daviña, Julio Rubén
Hojsgaard, Diego Hernán
Honfi, Ana Isabel
Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
author_facet Reutemann, Anna Verena
Martínez, Eric Javier
Schedler, Mara
Daviña, Julio Rubén
Hojsgaard, Diego Hernán
Honfi, Ana Isabel
author_sort Reutemann, Anna Verena
title Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
title_short Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
title_full Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
title_fullStr Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
title_full_unstemmed Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
title_sort uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
publisher Wiley Blackwell Publishing, Inc
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/59954
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