Ptilagrostis contracta (Stipeae, Poaceae), a New Species Endemic to Qinghai-Tibet Plateau

PLoS One. 2017 Jan 6;12(1):e0166603. doi: 10.1371/journal.pone.0166603. eCollection 2017.

Abstract

A new species, Ptilagrostis contracta, endemic to Qinghai-Tibet Plateau is described and illustrated. It is distinguished from other species in Ptilagrostis by having contracted panicles, 1-geniculate awns with hairy columns and scabrous bristles and evenly pubescent lemmas. Evidence from lemma epidermal pattern, cytology and molecular phylogenetic analyses based on the nuclear ITS sequence data confirm its systematic position in Ptilagrostis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • China
  • Chromosomes, Plant
  • DNA Barcoding, Taxonomic
  • DNA, Plant
  • Ecosystem
  • Environment*
  • Evolution, Molecular
  • Introduced Species*
  • Phylogeny
  • Poaceae / classification*
  • Poaceae / genetics
  • Sequence Analysis, DNA

Substances

  • DNA, Plant

Grants and funding

This work was funded by the National Natural Science Foundation of China (grant nos. 31070168, 31470300, 31110103911, and 30990241), http://www.nsfc.gov.cn/publish/portal1/; and Science and Technology Basic Work (grant no. 2013FY112100), http://most.gov.cn/. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of the authors are articulated in the 'author contributions' section.