Dataset Information

Taxonomy of the Colocasiomyia gigantea species group (Diptera, Drosophilidae), with descriptions of four new species from Yunnan, China.

ABSTRACT: Species of the genus Colocasiomyia de Meijere feed/breed on inflorescences/infructescences of the plants from the families Araceae, Arecaceae and Magnoliaceae. Although most of them utilize plants from the subfamily Aroideae of Araceae, three species of the recently established C. gigantea species group make use of plants of the subfamily Monsteroideae. We describe four new species of the gigantea group found from Yunnan, China: Colocasiomyia longifilamentata Li & Gao, sp. n., C. longivalva Li & Gao, sp. n., C. hailini Li & Gao, sp. n., and C. yini Li & Gao, sp. n. The species delimitation is proved in virtue of not only morphology but also DNA barcodes, i.e., sequences of the partial mitochondrial COI (cytochrome c oxidase subunit I) gene. Some nucleotide sites with fixed status in the alignment of the COI sequences (658 sites in length) are used as "pure" molecular diagnostic characters to delineate species in the gigantea group.

SUBMITTER: Li NN

PROVIDER: S-EPMC4023246 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Taxonomy of the Colocasiomyia gigantea species group (Diptera, Drosophilidae), with descriptions of four new species from Yunnan, China.

Li Nan-Nan NN Toda Masanori J MJ Fu Zhao Z Chen Ji-Min JM Li Su-Hua SH Gao Jian-Jun JJ

ZooKeys 20140430 406

Species of the genus Colocasiomyia de Meijere feed/breed on inflorescences/infructescences of the plants from the families Araceae, Arecaceae and Magnoliaceae. Although most of them utilize plants from the subfamily Aroideae of Araceae, three species of the recently established C. gigantea species group make use of plants of the subfamily Monsteroideae. We describe four new species of the gigantea group found from Yunnan, China: Colocasiomyia longifilamentata Li & Gao, sp. n., C. longivalva Li & ...[more]

PMID: 24843281

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Project description:The wood-inhabiting fungi play an integral role in wood degradation and the cycle of matter in the ecological system. They are considered as the "key player" in wood decomposition, because of their ability to produce lignocellulosic enzymes that break down woody lignin, cellulose and hemicellulose. In the present study, four new wood-inhabiting fungal species, Adustochaetealbomarginata, Ad.punctata, Alloexidiopsisgrandinea and Al.xantha collected from southern China, are proposed, based on a combination of morphological features and molecular evidence. Adustochaetealbomarginata is characterised by resupinate basidiomata with cream to buff, a smooth, cracked, hymenial surface, a monomitic hyphal system with clamped generative hyphae and subcylindrical to allantoid basidiospores (12-17.5 × 6.5-9 µm). Adustochaetepunctata is characterised by resupinate basidiomata with cream, a smooth, punctate hymenial surface, a monomitic hyphal system with clamped generative hyphae and subcylindrical to allantoid basidiospores (13.5-18 × 6-8.2 µm). Alloexidiopsisgrandinea is characterised by resupinate basidiomata with buff to slightly yellowish, a grandinioid hymenial surface, a monomitic hyphal system with clamped generative hyphae and allantoid basidiospores (10-12.3 × 5-5.8 µm). Additionally, Alloexidiopsisxantha is characterised by resupinate basidiomata with cream to slightly buff, a smooth hymenial surface, a monomitic hyphal system with clamped generative hyphae and subcylindrical to allantoid basidiospores measuring 20-24 × 5-6.2 µm. Sequences of the internal transcribed spacers (ITS) and the large subunit (nrLSU) of the nuclear ribosomal DNA (rDNA) markers of the studied samples were generated. Phylogenetic analyses were performed with the Maximum Likelihood, Maximum Parsimony and Bayesian Inference methods. The phylogram, based on the ITS+nLSU rDNA gene regions, revealed that four new species were assigned to the genera Adustochaete and Alloexidiopsis within the order Auriculariales, individually. The phylogenetic tree inferred from the ITS sequences highlighted that Ad.albomarginata was retrieved as a sister to Ad.yunnanensis and the species Ad.punctata was sister to Ad.rava. The topology, based on the ITS sequences, showed that Al.grandinea was retrieved as a sister to Al.schistacea and the taxon Al.xantha formed a monophyletic lineage. Furthermore, two identification keys to Adustochaete and Alloexidiopsis worldwide are provided.

Dataset Information

Taxonomy of the Colocasiomyia gigantea species group (Diptera, Drosophilidae), with descriptions of four new species from Yunnan, China.

Publications

Taxonomy of the Colocasiomyia gigantea species group (Diptera, Drosophilidae), with descriptions of four new species from Yunnan, China.

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