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Citation for Study 12071

Citation title: "ITS and morphology tell different histories about the species of the Sciuro-hypnum reflexum complex (Brachytheciaceae, Bryophyta)".

Study name: "ITS and morphology tell different histories about the species of the Sciuro-hypnum reflexum complex (Brachytheciaceae, Bryophyta)".

This study is part of submission 12071 (Status: Published).

Citation

Heden?s L., Draper I., Milyutina I., & Ignatov M. 2012. ITS and morphology tell different histories about the species of the Sciuro-hypnum reflexum complex (Brachytheciaceae, Bryophyta). The Bryologist, .

Authors

Heden?s L.
Draper I.
Milyutina I.
Ignatov M.

Abstract

Morphology and ITS relationships are compared for 111 Sciuro-hypnum specimens, 95 of which belong to the S. reflexum complex. In the latter, excepting S. curtum and S. hylotapetum, S. reflexum probably represents an ancestral grade. Within the S. reflexum complex ITS data are frequently congruent with morphology, but incongruence between these data sets is abundant. According to ITS S. tromsoeense and S. latifolium are polyphyletic, S. altaicum, some specimens of S. oedipodium, and S. curtum S. starkei intermediates cannot be distinguished from S. reflexum, and S. fuegianum is identical with S. glaciale. There is no evidence to suggest that ITS a priori is more reliable than morphology, and we therefore suggest that the abundant incongruent patterns can be referred to a young age of the S. reflexum complex. Incomplete lineage sorting, occasional hybridisation, faster morphological than ITS evolution, and regional differences in extinction rates during the Pleistocene glaciations are suggested as possible explanations for the incongruence revealed, but additional information is required to decide which is/are most important. Three species, S. sichuanicum, S. sinolatifolium, and S. squarrosum, are described as new based on the molecular relationships found and morphology.

Keywords

Eurasia, Incongruence, Pleistocene, Sciuro-hypnum sichuanicum, Sciuro-hypnum sinolatifolium, Sciuro-hypnum squarrosum

External links

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Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S12071
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Show BibTeX reference

		@ARTICLE{TreeBASE2Ref20176,
	 author = {Lars  Heden?s and Isabel  Draper and Irina  Milyutina and Michail S.  Ignatov},
	 title = {ITS and morphology tell different histories about the species of the Sciuro-hypnum reflexum complex (Brachytheciaceae, Bryophyta)},
	 year = {2012},
	 keywords = {Eurasia, Incongruence, Pleistocene, Sciuro-hypnum sichuanicum, Sciuro-hypnum sinolatifolium, Sciuro-hypnum squarrosum},
	 doi = {},
	 url = {http://},
	 pmid = {},
	 journal = {The Bryologist},
	 volume = {},
	 number = {},
	 pages = {},
	 abstract = {Morphology and ITS relationships are compared for 111 Sciuro-hypnum specimens, 95 of which belong to the S. reflexum complex. In the latter, excepting S. curtum and S. hylotapetum, S. reflexum probably represents an ancestral grade. Within the S. reflexum complex ITS data are frequently congruent with morphology, but incongruence between these data sets is abundant. According to ITS S. tromsoeense and S. latifolium are polyphyletic, S. altaicum, some specimens of S. oedipodium, and S. curtum S. starkei intermediates cannot be distinguished from S. reflexum, and S. fuegianum is identical with S. glaciale. There is no evidence to suggest that ITS a priori is more reliable than morphology, and we therefore suggest that the abundant incongruent patterns can be referred to a young age of the S. reflexum complex. Incomplete lineage sorting, occasional hybridisation, faster morphological than ITS evolution, and regional differences in extinction rates during the Pleistocene glaciations are suggested as possible explanations for the incongruence revealed, but additional information is required to decide which is/are most important. Three species, S. sichuanicum, S. sinolatifolium, and S. squarrosum, are described as new based on the molecular relationships found and morphology.}
}

Show RIS reference

TY - JOUR
ID - 20176
AU - Heden?s,Lars
AU - Draper,Isabel
AU - Milyutina,Irina
AU - Ignatov,Michail S.
T1 - ITS and morphology tell different histories about the species of the Sciuro-hypnum reflexum complex (Brachytheciaceae, Bryophyta)
PY - 2012
KW - Eurasia
KW - Incongruence
KW - Pleistocene
KW - Sciuro-hypnum sichuanicum
KW - Sciuro-hypnum sinolatifolium
KW - Sciuro-hypnum squarrosum
UR - http://dx.doi.org/
N2 - Morphology and ITS relationships are compared for 111 Sciuro-hypnum specimens, 95 of which belong to the S. reflexum complex. In the latter, excepting S. curtum and S. hylotapetum, S. reflexum probably represents an ancestral grade. Within the S. reflexum complex ITS data are frequently congruent with morphology, but incongruence between these data sets is abundant. According to ITS S. tromsoeense and S. latifolium are polyphyletic, S. altaicum, some specimens of S. oedipodium, and S. curtum S. starkei intermediates cannot be distinguished from S. reflexum, and S. fuegianum is identical with S. glaciale. There is no evidence to suggest that ITS a priori is more reliable than morphology, and we therefore suggest that the abundant incongruent patterns can be referred to a young age of the S. reflexum complex. Incomplete lineage sorting, occasional hybridisation, faster morphological than ITS evolution, and regional differences in extinction rates during the Pleistocene glaciations are suggested as possible explanations for the incongruence revealed, but additional information is required to decide which is/are most important. Three species, S. sichuanicum, S. sinolatifolium, and S. squarrosum, are described as new based on the molecular relationships found and morphology.
L3 -
JF - The Bryologist
VL -
IS -
ER -