@ARTICLE{TreeBASE2Ref16620,
author = {Stuart Frazier McDaniel and A. Jonathan Shaw},
title = {Phylogeographic structure and cryptic speciation in the trans-Antarctic moss, Pyrrhobryum mnioides.},
year = {2003},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Evolution},
volume = {57},
number = {2},
pages = {205--215},
abstract = {Many bryophyte species have distributions that span multiple continents. The hypotheses historically advanced to explain such distributions rely on either long-distance spore dispersal or slow rates of morphological evolution following ancient continental vicariance events. We use phylogenetic analyses of DNA sequence variation at three chloroplast loci (atpB-rbcL spacer, rps4 gene, and trnL intron and 3? spacer) to examine these two hypotheses in the trans-Antarctic moss Pyrrhobryum mnioides. We find: 1) reciprocal monophyly of Australasian and South American populations, indicating a lack of intercontinental dispersal, 2) shared haplotypes between Australia and New Zealand, suggesting recent or ongoing migration across the Tasman Sea, and 3) reciprocal monophyly among Patagonian and Neotropical populations, suggesting no recent migration along the Andes. These results corroborate experimental work suggesting that spore features may be critical determinants of species range(van Zanten 1978). We use the mid-Miocene development of the Atacama Desert, 14 MYA, to calibrate a molecular clock for the tree. The age of the trans-Antarctic disjunction is estimated to be 80 MYA, consistent with Gondwanan vicariance, making it among the most ancient documented cases of cryptic speciation. These data are in accord with niche conservatism, but whether the morphological stasis is a product of stabilizing selection or phylogenetic constraint is unknown.}
}
Citation for Study 929
Citation title:
"Phylogeographic structure and cryptic speciation in the trans-Antarctic moss, Pyrrhobryum mnioides.".
This study was previously identified under the legacy study ID S806
(Status: Published).
Citation
Mcdaniel S., & Shaw A. 2003. Phylogeographic structure and cryptic speciation in the trans-Antarctic moss, Pyrrhobryum mnioides. Evolution, 57(2): 205-215.
Authors
Abstract
Many bryophyte species have distributions that span multiple continents. The hypotheses historically advanced to explain such distributions rely on either long-distance spore dispersal or slow rates of morphological evolution following ancient continental vicariance events. We use phylogenetic analyses of DNA sequence variation at three chloroplast loci (atpB-rbcL spacer, rps4 gene, and trnL intron and 3? spacer) to examine these two hypotheses in the trans-Antarctic moss Pyrrhobryum mnioides. We find: 1) reciprocal monophyly of Australasian and South American populations, indicating a lack of intercontinental dispersal, 2) shared haplotypes between Australia and New Zealand, suggesting recent or ongoing migration across the Tasman Sea, and 3) reciprocal monophyly among Patagonian and Neotropical populations, suggesting no recent migration along the Andes. These results corroborate experimental work suggesting that spore features may be critical determinants of species range(van Zanten 1978). We use the mid-Miocene development of the Atacama Desert, 14 MYA, to calibrate a molecular clock for the tree. The age of the trans-Antarctic disjunction is estimated to be 80 MYA, consistent with Gondwanan vicariance, making it among the most ancient documented cases of cryptic speciation. These data are in accord with niche conservatism, but whether the morphological stasis is a product of stabilizing selection or phylogenetic constraint is unknown.
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- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S929
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref16620,
author = {Stuart Frazier McDaniel and A. Jonathan Shaw},
title = {Phylogeographic structure and cryptic speciation in the trans-Antarctic moss, Pyrrhobryum mnioides.},
year = {2003},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Evolution},
volume = {57},
number = {2},
pages = {205--215},
abstract = {Many bryophyte species have distributions that span multiple continents. The hypotheses historically advanced to explain such distributions rely on either long-distance spore dispersal or slow rates of morphological evolution following ancient continental vicariance events. We use phylogenetic analyses of DNA sequence variation at three chloroplast loci (atpB-rbcL spacer, rps4 gene, and trnL intron and 3? spacer) to examine these two hypotheses in the trans-Antarctic moss Pyrrhobryum mnioides. We find: 1) reciprocal monophyly of Australasian and South American populations, indicating a lack of intercontinental dispersal, 2) shared haplotypes between Australia and New Zealand, suggesting recent or ongoing migration across the Tasman Sea, and 3) reciprocal monophyly among Patagonian and Neotropical populations, suggesting no recent migration along the Andes. These results corroborate experimental work suggesting that spore features may be critical determinants of species range(van Zanten 1978). We use the mid-Miocene development of the Atacama Desert, 14 MYA, to calibrate a molecular clock for the tree. The age of the trans-Antarctic disjunction is estimated to be 80 MYA, consistent with Gondwanan vicariance, making it among the most ancient documented cases of cryptic speciation. These data are in accord with niche conservatism, but whether the morphological stasis is a product of stabilizing selection or phylogenetic constraint is unknown.}
}
- Show RIS reference
TY - JOUR
ID - 16620
AU - McDaniel,Stuart Frazier
AU - Shaw,A. Jonathan
T1 - Phylogeographic structure and cryptic speciation in the trans-Antarctic moss, Pyrrhobryum mnioides.
PY - 2003
UR -
N2 - Many bryophyte species have distributions that span multiple continents. The hypotheses historically advanced to explain such distributions rely on either long-distance spore dispersal or slow rates of morphological evolution following ancient continental vicariance events. We use phylogenetic analyses of DNA sequence variation at three chloroplast loci (atpB-rbcL spacer, rps4 gene, and trnL intron and 3? spacer) to examine these two hypotheses in the trans-Antarctic moss Pyrrhobryum mnioides. We find: 1) reciprocal monophyly of Australasian and South American populations, indicating a lack of intercontinental dispersal, 2) shared haplotypes between Australia and New Zealand, suggesting recent or ongoing migration across the Tasman Sea, and 3) reciprocal monophyly among Patagonian and Neotropical populations, suggesting no recent migration along the Andes. These results corroborate experimental work suggesting that spore features may be critical determinants of species range(van Zanten 1978). We use the mid-Miocene development of the Atacama Desert, 14 MYA, to calibrate a molecular clock for the tree. The age of the trans-Antarctic disjunction is estimated to be 80 MYA, consistent with Gondwanan vicariance, making it among the most ancient documented cases of cryptic speciation. These data are in accord with niche conservatism, but whether the morphological stasis is a product of stabilizing selection or phylogenetic constraint is unknown.
L3 -
JF - Evolution
VL - 57
IS - 2
SP - 205
EP - 215
ER -
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