Re-establishment of the genus Ania Lindl. (Orchidaceae)

PLoS One. 2014 Jul 21;9(7):e103129. doi: 10.1371/journal.pone.0103129. eCollection 2014.

Abstract

Ania Lindl. is a small genus of the tribe Collabieae subtribe Collabiinae (Orchidaceae). For the last 150 years, it has generally been treated as a synonym of Tainia Blume. In this study, we critically re-examined morphological characters that have been used to distinguish Ania from Tainia, and assessed the phylogeny of Tainia using morphological and palynological characters. Sequences of the nuclear ribosomal ITS, chloroplast trnL intron and combined DNA data sets were analysed to clarify the delimitation and the phylogeny of these groups. The morphological and palynological survey revealed a number of useful diagnostic characters which permit a clear definition of Ania, after the exclusion of a single taxonomically questionable species. Results confirmed that Ania is distinct from Tainia. Phylogenetic reconstructions based on molecular data provided the greatest resolution and produced a morphologically well differentiated clade of Ania. In addition to morphological and suggested palynological characters, the phylogenies were also supported by karyological evidence. Our results support the independent generic status of Ania. The genus name Ania is revived and re-established.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • DNA, Plant*
  • Orchidaceae / anatomy & histology
  • Orchidaceae / classification*
  • Orchidaceae / genetics
  • Phylogeny*

Substances

  • DNA, Plant

Grants and funding

This research has been financially supported by grants from the National Natural Science Foundation of China (Grant Nos. 31100149 and 31270248) and Special Foundation for National Basic Research of the Ministry of Science and Technology, China (Grant No. 2013FY112100). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.