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Tall Pinus luzmariae trees with genes from P. herrerae
CONTEXT: Pinus herrerae and P. luzmariae are endemic to western Mexico, where they cover an area of more than 1 million hectares. Pinus herrerae is also cultivated in field trials in South Africa and South America, because of its considerable economic importance as a source of timber and resin. Seed...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7049253/ https://www.ncbi.nlm.nih.gov/pubmed/32149029 http://dx.doi.org/10.7717/peerj.8648 |
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author | Wehenkel, Christian Mariscal-Lucero, Samantha del Rocío González-Elizondo, M. Socorro Aguirre-Galindo, Víctor A. Fladung, Matthias López-Sánchez, Carlos A. |
author_facet | Wehenkel, Christian Mariscal-Lucero, Samantha del Rocío González-Elizondo, M. Socorro Aguirre-Galindo, Víctor A. Fladung, Matthias López-Sánchez, Carlos A. |
author_sort | Wehenkel, Christian |
collection | PubMed |
description | CONTEXT: Pinus herrerae and P. luzmariae are endemic to western Mexico, where they cover an area of more than 1 million hectares. Pinus herrerae is also cultivated in field trials in South Africa and South America, because of its considerable economic importance as a source of timber and resin. Seed quality, afforestation success and desirable traits may all be influenced by the presence of hybrid trees in seed stands. AIMS: We aimed to determine the degree of hybridization between P. herrerae and P. luzmariae in seed stands of each species located in the Sierra Madre Occidental, Durango, Mexico. METHODS: AFLP molecular markers from samples of 171 trees across five populations were analyzed with STRUCTURE and NewHybrids software to determine the degree of introgressive hybridization. The accuracy of STRUCTURE and NewHybrids in detecting hybrids was quantified using the software Hybridlab 1.0. Morphological analysis of 131 samples from two populations of P. herrerae and two populations of P. luzmariae was also conducted by Random Forest classification. The data were compared by Principal Coordinate Analysis (PCoA) in GenAlex 6.501. RESULTS: Hybridization between Pinus herrerae and P. luzmariae was observed in all seed stands under study and resulted in enhancement of desirable silvicultural traits in the latter species. In P. luzmariae, only about 16% molecularly detected hybrids correspond to those identified on a morphological basis. However, the morphology of P. herrerae is not consistent with the molecularly identified hybrids from one population and is only consistent with 3.3 of those from the other population. CONCLUSIONS: This is the first report of hybrid vigour (heterosis) in Mexican pines. Information about hybridization and introgression is essential for developing effective future breeding programs, successful establishment of plantations and management of natural forest stands. Understanding how natural hybridization may influence the evolution and adaptation of pines to climate change is a cornerstone to sustainable forest management including adaptive silviculture. |
format | Online Article Text |
id | pubmed-7049253 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-70492532020-03-06 Tall Pinus luzmariae trees with genes from P. herrerae Wehenkel, Christian Mariscal-Lucero, Samantha del Rocío González-Elizondo, M. Socorro Aguirre-Galindo, Víctor A. Fladung, Matthias López-Sánchez, Carlos A. PeerJ Agricultural Science CONTEXT: Pinus herrerae and P. luzmariae are endemic to western Mexico, where they cover an area of more than 1 million hectares. Pinus herrerae is also cultivated in field trials in South Africa and South America, because of its considerable economic importance as a source of timber and resin. Seed quality, afforestation success and desirable traits may all be influenced by the presence of hybrid trees in seed stands. AIMS: We aimed to determine the degree of hybridization between P. herrerae and P. luzmariae in seed stands of each species located in the Sierra Madre Occidental, Durango, Mexico. METHODS: AFLP molecular markers from samples of 171 trees across five populations were analyzed with STRUCTURE and NewHybrids software to determine the degree of introgressive hybridization. The accuracy of STRUCTURE and NewHybrids in detecting hybrids was quantified using the software Hybridlab 1.0. Morphological analysis of 131 samples from two populations of P. herrerae and two populations of P. luzmariae was also conducted by Random Forest classification. The data were compared by Principal Coordinate Analysis (PCoA) in GenAlex 6.501. RESULTS: Hybridization between Pinus herrerae and P. luzmariae was observed in all seed stands under study and resulted in enhancement of desirable silvicultural traits in the latter species. In P. luzmariae, only about 16% molecularly detected hybrids correspond to those identified on a morphological basis. However, the morphology of P. herrerae is not consistent with the molecularly identified hybrids from one population and is only consistent with 3.3 of those from the other population. CONCLUSIONS: This is the first report of hybrid vigour (heterosis) in Mexican pines. Information about hybridization and introgression is essential for developing effective future breeding programs, successful establishment of plantations and management of natural forest stands. Understanding how natural hybridization may influence the evolution and adaptation of pines to climate change is a cornerstone to sustainable forest management including adaptive silviculture. PeerJ Inc. 2020-02-26 /pmc/articles/PMC7049253/ /pubmed/32149029 http://dx.doi.org/10.7717/peerj.8648 Text en ©2020 Wehenkel et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Agricultural Science Wehenkel, Christian Mariscal-Lucero, Samantha del Rocío González-Elizondo, M. Socorro Aguirre-Galindo, Víctor A. Fladung, Matthias López-Sánchez, Carlos A. Tall Pinus luzmariae trees with genes from P. herrerae |
title | Tall Pinus luzmariae trees with genes from P. herrerae |
title_full | Tall Pinus luzmariae trees with genes from P. herrerae |
title_fullStr | Tall Pinus luzmariae trees with genes from P. herrerae |
title_full_unstemmed | Tall Pinus luzmariae trees with genes from P. herrerae |
title_short | Tall Pinus luzmariae trees with genes from P. herrerae |
title_sort | tall pinus luzmariae trees with genes from p. herrerae |
topic | Agricultural Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7049253/ https://www.ncbi.nlm.nih.gov/pubmed/32149029 http://dx.doi.org/10.7717/peerj.8648 |
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