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Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations
BACKGROUND: Gene flow and polyploidy have been found to be important in Juniperus evolution. However, little evidence has been published elucidating the association of both phenomena in juniper taxa in the wild. Two main areas were studied in Spain (Eastern Iberian Range and Sierra de Baza) with bot...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7650182/ https://www.ncbi.nlm.nih.gov/pubmed/33167862 http://dx.doi.org/10.1186/s12862-020-01688-3 |
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author | Farhat, Perla Siljak-Yakovlev, Sonja Valentin, Nicolas Fabregat, Carlos Lopez-Udias, Silvia Salazar-Mendias, Carlos Altarejos, Joaquín Adams, Robert P. |
author_facet | Farhat, Perla Siljak-Yakovlev, Sonja Valentin, Nicolas Fabregat, Carlos Lopez-Udias, Silvia Salazar-Mendias, Carlos Altarejos, Joaquín Adams, Robert P. |
author_sort | Farhat, Perla |
collection | PubMed |
description | BACKGROUND: Gene flow and polyploidy have been found to be important in Juniperus evolution. However, little evidence has been published elucidating the association of both phenomena in juniper taxa in the wild. Two main areas were studied in Spain (Eastern Iberian Range and Sierra de Baza) with both diploid and tetraploid taxa present in sympatry. Gene flow and ploidy level were assessed for these taxa and the resulted offspring. RESULTS: Twenty-two allo-triploid hybrids between J. sabina var. sabina and J. thurifera were found in the Eastern Iberian Range population. However, in the Sierra de Baza population no triploids were found. Instead, 18 allo-tetraploid hybrids between two tetraploid taxa: J. sabina var. balkanensis and J. thurifera were discovered. High genetic diversity was exhibited among the tetraploid hybrids at Sierra de Baza, in contrast to the genetically identical triploid hybrids at the Eastern Iberian Range; this suggests meiotic difficulties within the triploid hybrids. In addition, unidirectional gene flow was observed in both studied areas. CONCLUSION: Polyploidy and hybridization can be complementary partners in the evolution of Juniperus taxa in sympatric occurrences. Juniperus was shown to be an ideal coniferous model to study these two phenomena, independently or in concert. |
format | Online Article Text |
id | pubmed-7650182 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-76501822020-11-09 Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations Farhat, Perla Siljak-Yakovlev, Sonja Valentin, Nicolas Fabregat, Carlos Lopez-Udias, Silvia Salazar-Mendias, Carlos Altarejos, Joaquín Adams, Robert P. BMC Evol Biol Research Article BACKGROUND: Gene flow and polyploidy have been found to be important in Juniperus evolution. However, little evidence has been published elucidating the association of both phenomena in juniper taxa in the wild. Two main areas were studied in Spain (Eastern Iberian Range and Sierra de Baza) with both diploid and tetraploid taxa present in sympatry. Gene flow and ploidy level were assessed for these taxa and the resulted offspring. RESULTS: Twenty-two allo-triploid hybrids between J. sabina var. sabina and J. thurifera were found in the Eastern Iberian Range population. However, in the Sierra de Baza population no triploids were found. Instead, 18 allo-tetraploid hybrids between two tetraploid taxa: J. sabina var. balkanensis and J. thurifera were discovered. High genetic diversity was exhibited among the tetraploid hybrids at Sierra de Baza, in contrast to the genetically identical triploid hybrids at the Eastern Iberian Range; this suggests meiotic difficulties within the triploid hybrids. In addition, unidirectional gene flow was observed in both studied areas. CONCLUSION: Polyploidy and hybridization can be complementary partners in the evolution of Juniperus taxa in sympatric occurrences. Juniperus was shown to be an ideal coniferous model to study these two phenomena, independently or in concert. BioMed Central 2020-11-09 /pmc/articles/PMC7650182/ /pubmed/33167862 http://dx.doi.org/10.1186/s12862-020-01688-3 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article Farhat, Perla Siljak-Yakovlev, Sonja Valentin, Nicolas Fabregat, Carlos Lopez-Udias, Silvia Salazar-Mendias, Carlos Altarejos, Joaquín Adams, Robert P. Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title | Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title_full | Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title_fullStr | Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title_full_unstemmed | Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title_short | Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations |
title_sort | gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two juniperus populations |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7650182/ https://www.ncbi.nlm.nih.gov/pubmed/33167862 http://dx.doi.org/10.1186/s12862-020-01688-3 |
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