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Three new species of Begonia sect. Baryandra from Panay Island, Philippines

BACKGROUND: The flora of Panay Island is under-collected compared with the other islands of the Philippines. In a joint expedition to the island, botanists from Taiwan and the Philippines found three unknown Begonia species and compared them with potentially allied species. RESULTS: The three specie...

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Autores principales: Peng, Ching-I, Rubite, Rosario Rivera, Lin, Che-Wei, Hughes, Mark, Kono, Yoshiko, Chung, Kuo-Fang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491425/
https://www.ncbi.nlm.nih.gov/pubmed/28664395
http://dx.doi.org/10.1186/s40529-017-0182-x
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author Peng, Ching-I
Rubite, Rosario Rivera
Lin, Che-Wei
Hughes, Mark
Kono, Yoshiko
Chung, Kuo-Fang
author_facet Peng, Ching-I
Rubite, Rosario Rivera
Lin, Che-Wei
Hughes, Mark
Kono, Yoshiko
Chung, Kuo-Fang
author_sort Peng, Ching-I
collection PubMed
description BACKGROUND: The flora of Panay Island is under-collected compared with the other islands of the Philippines. In a joint expedition to the island, botanists from Taiwan and the Philippines found three unknown Begonia species and compared them with potentially allied species. RESULTS: The three species are clearly assignable to Begonia sect. Baryandra which is largely endemic to the Philippines. Studies of literature, herbarium specimens, and living plants support the recognition of the three new species: Begonia culasiensis, B. merrilliana, and B. sykakiengii. Somatic chromosomes at metaphase were determined to be 2n = 30 for B. culasiensis and 2n = 28 for both B. merrilliana and B. sykakiengii, congruent with those of most species in sect. Baryandra. Molecular phylogenetic evidence is consistent with B. culasiensis being a relict from the late Miocene and B. merrilliana and B. sykakiengii being younger species of Pleistocene origin. CONCLUSION: The continuing discovery of endemic Philippine species means the remaining fragments of both primary and secondary native vegetation in the archipelago are of increasing value in terms of natural capital. A secure future for the species could be realized through ex situ conservation collections and raising awareness with community groups.
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spelling pubmed-54914252017-07-13 Three new species of Begonia sect. Baryandra from Panay Island, Philippines Peng, Ching-I Rubite, Rosario Rivera Lin, Che-Wei Hughes, Mark Kono, Yoshiko Chung, Kuo-Fang Bot Stud Original Article BACKGROUND: The flora of Panay Island is under-collected compared with the other islands of the Philippines. In a joint expedition to the island, botanists from Taiwan and the Philippines found three unknown Begonia species and compared them with potentially allied species. RESULTS: The three species are clearly assignable to Begonia sect. Baryandra which is largely endemic to the Philippines. Studies of literature, herbarium specimens, and living plants support the recognition of the three new species: Begonia culasiensis, B. merrilliana, and B. sykakiengii. Somatic chromosomes at metaphase were determined to be 2n = 30 for B. culasiensis and 2n = 28 for both B. merrilliana and B. sykakiengii, congruent with those of most species in sect. Baryandra. Molecular phylogenetic evidence is consistent with B. culasiensis being a relict from the late Miocene and B. merrilliana and B. sykakiengii being younger species of Pleistocene origin. CONCLUSION: The continuing discovery of endemic Philippine species means the remaining fragments of both primary and secondary native vegetation in the archipelago are of increasing value in terms of natural capital. A secure future for the species could be realized through ex situ conservation collections and raising awareness with community groups. Springer Berlin Heidelberg 2017-06-29 /pmc/articles/PMC5491425/ /pubmed/28664395 http://dx.doi.org/10.1186/s40529-017-0182-x Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Peng, Ching-I
Rubite, Rosario Rivera
Lin, Che-Wei
Hughes, Mark
Kono, Yoshiko
Chung, Kuo-Fang
Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title_full Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title_fullStr Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title_full_unstemmed Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title_short Three new species of Begonia sect. Baryandra from Panay Island, Philippines
title_sort three new species of begonia sect. baryandra from panay island, philippines
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491425/
https://www.ncbi.nlm.nih.gov/pubmed/28664395
http://dx.doi.org/10.1186/s40529-017-0182-x
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