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Citation for Study 11474

About Citation title: "Climacium (Bryophyta): species relationships and biogeographic implications".
About Study name: "Climacium (Bryophyta): species relationships and biogeographic implications".
About This study is part of submission 11464 (Status: Published).

Citation

Shaw J.A., Shaw B., Higuchi M., Arikawa T., Hirayama Y., & Devos N. 2011. Climacium (Bryophyta): species relationships and biogeographic implications. The Bryologist, .

Authors

  • Shaw J.A.
  • Shaw B.
  • Higuchi M.
  • Arikawa T.
  • Hirayama Y.
  • Devos N. (submitter) Phone 919-660-7298

Abstract

Climacium is a small but morphologically distinctive genus (?tree mosses?) with three species distributed primarily in the Northern Hemisphere. Climacium dendroides occurs around the globe at northern latitudes with disjunct populations in Mexico and New Zealand, whereas C. americanum and C. kindbergii are endemic to eastern North America and C. japonicum is limited to eastern Asia. We tested the hypothesis that C. americanum and C. kindbergii from eastern North America have a sister group relationship with C. japonicum from eastern Asia. Phylogenetic inferences were based on nucleotide sequence data from five plastid loci plus the nuclear ribosomal ITS region. Climacium japonicum is resolved as sister to a clade containing C. dendroides, C. americanum, and C. kindbergii. Climacium americanum and C. kindbergii were not resolved by the sequence data but a clade containing both taxa is sister to C. dendroides. Geographically disjunct populations of C. dendroides in Asia, Mexico, the United States, and Canada vary at only a few polymorphic nucleotide sites across the three loci. Nevertheless, phylogenetic analyses suggest some infraspecific geographic structure with western North American and Australasian clades. The disjunctive New Zealand plants of C. dendroides are related to Asian accessions.

Keywords

Eastern Asia-eastern North America disjunction, Climacium, Hypnales, Pleuroziopsis

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S11474
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