10.5061/DRYAD.K2C2P
Houston, Derek D.
University of Nevada, Las Vegas
Shiozawa, Dennis K.
Brigham Young University
Smith, Brian Tilston
Louisiana State University
Riddle, Brett R.
University of Nevada, Las Vegas
Data from: Investigating the effects of Pleistocene events on genetic
divergence within Richardsonius balteatus, a widely distributed western
North American minnow
Dryad
dataset
2014
post-glacial colonization
redside shiner
pluvial lakes
Holocene
Richardsonius balteatus
glacial cycles
2014-05-29T19:01:56Z
2014-05-29T19:01:56Z
en
https://doi.org/10.1186/1471-2148-14-111
381798 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Background: Biogeographers seek to understand the influences of global
climate shifts and geologic changes to the landscape on the ecology and
evolution of organisms. Across both longer and shorter timeframes, the
western North American landscape has experienced dynamic transformations
related to various geologic processes and climatic oscillations, including
events as recently as the Last Glacial Maximum (LGM; ~20 Ka) that have
impacted the evolution of the North American biota. Redside shiner is a
cyprinid species that is widely distributed throughout western North
America. The species’ native range includes several well-documented
Pleistocene refugia. Here we use mitochondrial DNA sequence data to assess
phylogeography, and to test two biogeographic hypotheses regarding
post-glacial colonization by redside shiner: 1) Redside shiner entered the
Bonneville Basin at the time of the Bonneville Flood (Late Pleistocene;
14.5 Ka), and 2) redside shiner colonized British Columbia post-glacially
from a single refugium in the Upper Columbia River drainage. Results:
Genetic diversification in redside shiner began in the mid to late
Pleistocene, but was not associated with LGM. Different clades of redside
shiner were distributed in multiple glacial age refugia, and each clade
retains a signature of population expansion, with clades having secondary
contact in some areas. Conclusions: Divergence times between redside
shiner populations in the Bonneville Basin and the Upper Snake/Columbia
River drainage precedes the Bonneville Flood, thus it is unlikely that
redside shiner invaded the Bonneville Basin during this flooding event.
All but one British Columbia population of redside shiner are associated
with the Upper Columbia River drainage with the lone exception being a
population near the coast, suggesting that the province as a whole was
colonized from multiple refugia, but the inland British Columbia redside
shiner populations are affiliated with a refugium in the Upper Columbia
River drainage.
Redside Shiner Concatenated Cyt B and CR Lahontan OutgroupmtDNA nexus file
used for phylogenetic analyses and divergence time estimates
Western North America