The Miocene to Pleistocene colonization of the Philippine archipelago by <i>Begonia</i> sect. <i>Baryandra</i> (Begoniaceae)

Hughes, Mark; Rubite, Rosario Rivera; Blanc, Patrick; Chung, Kuo‐Fang; Peng, Ching‐I

doi:10.3732/ajb.1400428

Cited by 18 publications

(32 citation statements)

References 58 publications

(70 reference statements)

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“…All three new species belong to sect. Baryandra , conforming to the morphological delimitation of the section (Rubite et al 2013) and previous phylogenetic placement (Hughes et al 2015). …”

Section: Introductionsupporting

confidence: 71%

“…In continuation of our taxonomic and evolutionary studies of Philippine Begonia (Nakamura et al 2013; Rubite et al 2013, 2014, 2015; Hughes et al 2015; Tandang et al 2016; Peng et al 2017), we document novelties of Begonia on Panay, the sixth largest island of the Philippine Archipelago. Elmer Merrill was the first to explore Begonia in Panay Island, describing six new species, B. collisiae Merr., B. lancilimba Merr., B. obtusifolia Merr., B. panayensis Merr., B. rubrifolia Merr., and B. serpens Merr.…”

Section: Introductionsupporting

confidence: 60%

“…A time-calibrated molecular phylogenetic tree based on chloroplast DNA sequence data was taken from Hughes et al (2015). The phylogeny samples 40 species of Begonia sect.…”

Section: Methodsmentioning

confidence: 99%

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

et al. 2017

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BackgroundThe 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.ResultsThe 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.ConclusionThe 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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“…All three new species belong to sect. Baryandra , conforming to the morphological delimitation of the section (Rubite et al 2013) and previous phylogenetic placement (Hughes et al 2015). …”

Section: Introductionsupporting

confidence: 71%

Section: Introductionsupporting

confidence: 60%

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

et al. 2017

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“…Total genomic DNA was extracted from young leaves and buds using DNeasy Plant Mini Kits (Qiagen, USA). Four chloroplast non-coding regions ( ndh A intron, ndh F– rpl 32 spacer, rpl 32– trn L spacer, trn C– trn D spacer) were amplified as in Hughes et al (2015) with the PCR primer sequences from Demesure et al (1995) and Thomas et al (2011). Forward and reverse reads for all regions were assembled and aligned using Geneious Pro (Biomatters, New Zealand), with the alignments being subsequently manually edited in BioEdit 7.1.3 (Hall 1999); inversions were offset and the final alignment was 6905 bases long, with 39 bases excluded due to alignment uncertainty.…”

Section: Methodsmentioning

confidence: 99%

Three new species of Begonia endemic to the Puerto Princesa Subterranean River National Park, Palawan

et al. 2015

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Background Begonia is a mega-diverse genus of flowering plants prone to generating micro-endemic species, especially on limestone habitats. During fieldwork in the Puerto Princesa Subterranean River National Park, Palawan (Philippines), three species were encountered which did not match any previously described from the region.ResultsFollowing morphological, anatomical, molecular phylogenetic and cytological investigation a hypothesis of three new species is supported. The three new species belong to a clade endemic to Palawan and Borneo.ConclusionsThe limestone habitats in the Puerto Princesa Subterranean River National Park environs support a unique flora. The description of three new species from a small area within the park demonstrates how much remains to be discovered there, and the importance of its continued protection.Electronic supplementary materialThe online version of this article (doi:10.1186/s40529-015-0099-1) contains supplementary material, which is available to authorized users.

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“…& G.Forst. (Gesneriaceae [11]), Rhododendron L. (Ericaceae [12]), Begonia L. (Begoniaceae [13, 14]), and Aglaia Lour. (Meliaceae [15]).…”

Section: Introductionmentioning

confidence: 99%

Ixora (Rubiaceae) on the Philippines - crossroad or cradle?

et al. 2017

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BackgroundThe Philippine archipelago is globally one of the most important model island systems for studying evolutionary processes. However, most plant species on this archipelago have not yet been studied in sufficient detail. The main aim of this study is to unravel the evolutionary history and biogeographic relationships of the Philippine members of the pantropical genus Ixora.ResultsThe complex plastid and nuclear divergence patterns in Philippine Ixora, documented using tree and network approaches, reveal a highly dynamic evolution in Ixora, involving several phases of radiation and recolonization. Philippine Ixora comprises at least five lineages, of which one is most closely related to species from Wallacea, and the remaining four to species from Asia.ConclusionsOur study highlights the importance of Philippine species for understanding phytogeographic patterns in the Indomalayan-Australasian eco-region. The overall genetic differentiation, as well as the incongruence between genealogies based on the biparentally inherited nucleome and the maternally inherited plastome in Ixora, reflect the complex tectonic history of the Philippine archipelago. The Ixora lineage related to Wallacean species supports the delimitation of different ecozones along Huxley’s line, because it is absent from Palawan. The remaining four lineages are all allied with Asian taxa, reflecting several waves of colonization. Close relationships between some widespread Philippine species and locally adapted narrow endemics suggest that the widespread, genetically diverse species act as pools for the formation of new species in a process of ongoing speciation. Our results suggest that the species concepts of some of the more widespread taxa need to be revised.Electronic supplementary materialThe online version of this article (doi:10.1186/s12862-017-0974-3) contains supplementary material, which is available to authorized users.

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The Miocene to Pleistocene colonization of the Philippine archipelago by Begonia sect. Baryandra (Begoniaceae)

Cited by 18 publications

References 58 publications

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

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

Three new species of Begonia endemic to the Puerto Princesa Subterranean River National Park, Palawan

Ixora (Rubiaceae) on the Philippines - crossroad or cradle?

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