Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)

Turnera sidoides is a complex of dystilous perennial rhizomatous herbs with five subspecies in which diploid (2n = 2x = 14) to octoploid (2n = 8x = 56) cytotypes were found. Previous studies have suggested an autopolyploid origin of the complex, and provided evidence for the production of 2n pollen...

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Autores principales: Kovalsky, Ivana Evelín, Solís Neffa, Viviana Griselda
Formato: Artículo
Lenguaje:Inglés
Publicado: Springer 2021
Materias:
2n eggs
Polyploidy
Sexual polyploidization
Turnera sidoides
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/30340
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-30340
record_format dspace
spelling I48-R184-123456789-303402025-03-06T10:58:47Z Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae) Kovalsky, Ivana Evelín Solís Neffa, Viviana Griselda 2n eggs Polyploidy Sexual polyploidization Turnera sidoides Turnera sidoides is a complex of dystilous perennial rhizomatous herbs with five subspecies in which diploid (2n = 2x = 14) to octoploid (2n = 8x = 56) cytotypes were found. Previous studies have suggested an autopolyploid origin of the complex, and provided evidence for the production of 2n pollen in experimental conditions as well as in natural populations. However, only the production of 2n pollen has been demonstrated so far, while the production of 2n eggs on experimental crosses or in natural populations of T. sidoides remains unknown. In this paper we investigate the production of 2n eggs in diploid individuals to understand how they may have contributed to the origin and establishment of polyploids in diploid populations of T. sidoides. Our progeny test and flow cytometric analysis of seeds collected in natural populations of this species complex, show that the triploid embryos originated from 2n eggs, suggesting that 2n eggs can contribute to the origin of neopolyploids by sexual unilateral polyploidization as well as by sexual bilateral polyploidization. The occurrence of plants that continuously form many 2n eggs and pollen would play a key role in the establishment of neopolyploids in natural diploid populations. 2021-12-09T17:15:37Z 2021-12-09T17:15:37Z 2015 Artículo Kovalsky, Ivana Evelín y Solís Neffa, Viviana Griselda, 2015. Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae). Plant Systematics and Evolution. Heidelberg: Springer, vol. 302, no. 4, p. 357-366. ISSN 0378-2697. 0378-2697 http://repositorio.unne.edu.ar/handle/123456789/30340 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Springer Plant Systematics and Evolution, vol. 302, no. 4, p. 357–366.
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 2n eggs
Polyploidy
Sexual polyploidization
Turnera sidoides
spellingShingle 2n eggs
Polyploidy
Sexual polyploidization
Turnera sidoides
Kovalsky, Ivana Evelín
Solís Neffa, Viviana Griselda
Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
topic_facet 2n eggs
Polyploidy
Sexual polyploidization
Turnera sidoides
description Turnera sidoides is a complex of dystilous perennial rhizomatous herbs with five subspecies in which diploid (2n = 2x = 14) to octoploid (2n = 8x = 56) cytotypes were found. Previous studies have suggested an autopolyploid origin of the complex, and provided evidence for the production of 2n pollen in experimental conditions as well as in natural populations. However, only the production of 2n pollen has been demonstrated so far, while the production of 2n eggs on experimental crosses or in natural populations of T. sidoides remains unknown. In this paper we investigate the production of 2n eggs in diploid individuals to understand how they may have contributed to the origin and establishment of polyploids in diploid populations of T. sidoides. Our progeny test and flow cytometric analysis of seeds collected in natural populations of this species complex, show that the triploid embryos originated from 2n eggs, suggesting that 2n eggs can contribute to the origin of neopolyploids by sexual unilateral polyploidization as well as by sexual bilateral polyploidization. The occurrence of plants that continuously form many 2n eggs and pollen would play a key role in the establishment of neopolyploids in natural diploid populations.
format Artículo
author Kovalsky, Ivana Evelín
Solís Neffa, Viviana Griselda
author_facet Kovalsky, Ivana Evelín
Solís Neffa, Viviana Griselda
author_sort Kovalsky, Ivana Evelín
title Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
title_short Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
title_full Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
title_fullStr Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
title_full_unstemmed Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
title_sort evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides l. (passifloraceae)
publisher Springer
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/30340
work_keys_str_mv AT kovalskyivanaevelin evidenceoftheproductionof2neggsindiploidplantsoftheautopolyploidcomplexturnerasidoideslpassifloraceae
AT solisneffavivianagriselda evidenceoftheproductionof2neggsindiploidplantsoftheautopolyploidcomplexturnerasidoideslpassifloraceae
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