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@article{1518416,
author = {Yousefi, Narjes and Mikulášková, Eva and Stenøien, Hans K. and Flatberg, Kjell Ivar. and Košuthová, Alica and Hájek, Michal and Hassel, Kristian},
article_location = {Oxford},
article_number = {4},
doi = {http://dx.doi.org/10.1093/botlinnean/boy086},
keywords = {Arctic; bryophytes; cluster analysis; divergence; glacial refugia},
language = {eng},
issn = {0024-4074},
journal = {Botanical Journal of the Linnean society},
title = {Genetic and morphological variation in the circumpolar distribution range of Sphagnum warnstorfii: indications of vicariant divergence in a common peatmoss.},
url = {https://academic.oup.com/botlinnean/article-abstract/189/4/408/5420233},
volume = {189},
year = {2019}
}
TY - JOUR
ID - 1518416
AU - Yousefi, Narjes - Mikulášková, Eva - Stenøien, Hans K. - Flatberg, Kjell Ivar. - Košuthová, Alica - Hájek, Michal - Hassel, Kristian
PY - 2019
TI - Genetic and morphological variation in the circumpolar distribution range of Sphagnum warnstorfii: indications of vicariant divergence in a common peatmoss.
JF - Botanical Journal of the Linnean society
VL - 189
IS - 4
SP - 408-423
EP - 408-423
PB - OXFORD UNIV PRESS
SN - 00244074
KW - Arctic
KW - bryophytes
KW - cluster analysis
KW - divergence
KW - glacial refugia
UR - https://academic.oup.com/botlinnean/article-abstract/189/4/408/5420233
L2 - https://academic.oup.com/botlinnean/article-abstract/189/4/408/5420233
N2 - The Quaternary climatic oscillations caused pronounced changes in the distribution of the genetic variation among populations as well as phenotypic diversification worldwide. However, how important these processes have been in plants with high gene flow potential has been less studied. Sphagnum warnstorfii is a peatmoss species with a wide circumpolar distribution range exhibiting considerable morphological variation. In particular, many Arctic plants differ morphologically from plants in the rest of its distribution range. We used single nucleotide polymorphism (SNP) genotyping to investigate the patterns of genetic diversity in 112 plants from 105 localities sampled throughout the species distribution range and explored how this was correlated with phenotypic variation. Genetic cluster analysis identified two main genetic lineages with an average FST of 0.21 between them. The first cluster is restricted to the Arctic region, whereas the second has a wider distribution range covering the Arctic, boreal and boreo-nemoral regions of Eurasia and North America. We show that morphological variation is mostly concordant with patterns of genetic differentiation, and possibly representing adaptation to local environments. Based on approximate Bayesian computation simulations, we find that the two lineages probably diverged from each other before the Last Glacial Maximum (LGM). Our results show that vicariance due to glacial oscillations probably played a role for current patterns of diversification in a common peatmoss exhibiting a high gene flow potential.
ER -
YOUSEFI, Narjes, Eva MIKULÁŠKOVÁ, Hans K. STENØIEN, Kjell Ivar. FLATBERG, Alica KOŠUTHOVÁ, Michal HÁJEK and Kristian HASSEL. Genetic and morphological variation in the circumpolar distribution range of Sphagnum warnstorfii: indications of vicariant divergence in a common peatmoss. \textit{Botanical Journal of the Linnean society}. Oxford: OXFORD UNIV PRESS, 2019, vol.~189, No~4, p.~408-423. ISSN~0024-4074. Available from: https://dx.doi.org/10.1093/botlinnean/boy086.
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