Dataset Information

Molecular phylogeny of Hiptage (Malpighiaceae) reveals a new species from Southwest China.

ABSTRACT: Hiptage is an Asia-endemic genus of Malpighiaceae currently placed in the tetrapteroid clade, representing one of the seven inter-continent dispersions from New to Old World. A molecular phylogeny based on sequences of the internal transcribed spacer (ITS) region was recovered for the first time for the genus. Our results showed that the most recent common ancestor of Hiptage probably originated in the South Indo-China Peninsula and diversified in this region. Based on phylogenetic evidence and relevant morphological traits, we propose a new species; Hiptage incurvatum is characterised by mericarps with arcuate anterior lateral wings, two large glands on the dorsal sepals, and small glands on the remaining sepals. The new species is from Mt. Cangshan, Dali City (25°35'N, 100°02'E) in North Yunnan, Southwest China and is notable for its occurrence at high altitude, 1400 m (the highest distribution currently known for the genus). The implications of this unusual species for the dispersal and evolution of the genus are discussed.

SUBMITTER: Tan K

PROVIDER: S-EPMC6908513 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Molecular phylogeny of Hiptage (Malpighiaceae) reveals a new species from Southwest China.

Tan Ke K Zheng Hai-Lei HL Dong Shu-Peng SP Ren Ming-Xun MX

PhytoKeys 20191205

Hiptage is an Asia-endemic genus of Malpighiaceae currently placed in the tetrapteroid clade, representing one of the seven inter-continent dispersions from New to Old World. A molecular phylogeny based on sequences of the internal transcribed spacer (ITS) region was recovered for the first time for the genus. Our results showed that the most recent common ancestor of Hiptage probably originated in the South Indo-China Peninsula and diversified in this region. Based on phylogenetic ...[more]

PMID: 31849561

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Project description:Wood-decaying fungi represent a vital group of higher fungi that drive the cycling of matter and energy in forest ecosystems, and they have been the focus of thorough investigation. In this study, five new species, viz. Botryobasidiumdaweishanense, Inonotussubglobisporum, Kneiffiellabubalina, Xylodongranulanoides, and X.granulans from China, are described and illustrated based on the morphological characteristics and molecular phylogenetic analyses, in which the sequences of ITS+nLSU genes were used for the phylogenetic analyses by maximum likelihood and Bayesian inference methods. The phylogeny revealed that the Botryobasidiumdaweishanense groups with three taxa, viz., B.intertextum, B.leptocystidiatum, and B.subcoronatum. Inonotussubglobisporum is closely related to I.radiatus. Kneiffiellabubalina clustered sister to K.subalutacea. Xylodongranulanoides and X.granulans have a close relationship with X.bambusinus, X.fissuratus, X.subclavatus, X.montanus, and X.wenshanensis. Additionally, Xylodongranulanoides and X.granulans clustered together. Botryobasidiumdaweishanense is characterized by an araneose hymenial surface, fusiform, and cyanophilous basidiospores (6.1-7.3 × 3.3-3.9 μm). Inonotussubglobisporum is characterized by perennial basidiomata with lateral stipes, polygon pores measuring 4-6 per mm, and subglobose, cyanophilous basidiospores (3.6-4.3 × 2.8-3.5 μm). Kneiffiellabubalina is characterized by cream basidiomata and cylindrical to slightly allantoid basidiospores (8.0-8.9 × 1.8-2.3 μm). Xylodongranulanoides is characterized by grandinioid hymenial surfaces, various cystidia, and broadly ellipsoid, thick-walled basidiospores (4.7-5.3 × 3.6-4.1 μm). Xylodongranulans is characterized by grandinioid hymenial surfaces, capitate and clavate cystidia, and broadly ellipsoid basidiospores (3.8-4.2 × 2.9-3.3 μm). Phylogenetic analysis based on internal transcribed spacer (ITS) and nuclear large subunit RNA (nLSU) shows that the four species are members of Hymenochaetales, and one belongs to Cantharellales. All five new species are compared with morphologically and phylogenetically closely related species. The present study contributes to understanding the species diversity, taxonomy, and phylogeny of macrofungi in Southwestern China.

Dataset Information

Molecular phylogeny of Hiptage (Malpighiaceae) reveals a new species from Southwest China.

Publications

Molecular phylogeny of <i>Hiptage</i> (Malpighiaceae) reveals a new species from Southwest China.

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