TY - JOUR
T1 - Genetic diversity of two common freshwater mussel species, Lampsilis cardium and Quadrula pustulosa (Bivalvia
T2 - Unionidae), in a large federally protected waterway (St. Croix River, Minnesota/Wisconsin, U.S.A.)
AU - Szumowski, Suzannah C.
AU - Boyer, Sarah L.
AU - Hornbach, Daniel J.
AU - Hove, Mark C.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - Freshwater mussels in the family Unionidae have suffered severe population declines because of severe anthropogenic disturbances, such as habitat destruction and habitat alteration. Understanding the genetic diversity of healthy unionid populations is crucial to developing informed management plans for imperilled mussels. Here, we characterize the genetic diversity of two common species, Lampsilis cardium Rafinesque, 1820 and Quadrula pustulosa (I. Lea, 1831), using the mitochondrial gene ND1. Populations of Q. pustulosa contained more numerous and more highly divergent haplotypes than populations of L. cardium. This disparity in genetic diversity could be because of several factors, including differences in population size and location and extent of refugia during the Last Glacial Maximum. For both species, AMOVA analysis indicated no genetic structuring based on location within the river, with genetic diversity concentrated within rather than between populations. This finding is consistent with patterns seen for other common mussel species characteristic of large rivers.
AB - Freshwater mussels in the family Unionidae have suffered severe population declines because of severe anthropogenic disturbances, such as habitat destruction and habitat alteration. Understanding the genetic diversity of healthy unionid populations is crucial to developing informed management plans for imperilled mussels. Here, we characterize the genetic diversity of two common species, Lampsilis cardium Rafinesque, 1820 and Quadrula pustulosa (I. Lea, 1831), using the mitochondrial gene ND1. Populations of Q. pustulosa contained more numerous and more highly divergent haplotypes than populations of L. cardium. This disparity in genetic diversity could be because of several factors, including differences in population size and location and extent of refugia during the Last Glacial Maximum. For both species, AMOVA analysis indicated no genetic structuring based on location within the river, with genetic diversity concentrated within rather than between populations. This finding is consistent with patterns seen for other common mussel species characteristic of large rivers.
KW - ND1
KW - aquatic
KW - conservation genetics
KW - mtDNA
KW - population genetics
UR - http://www.scopus.com/inward/record.url?scp=84857875285&partnerID=8YFLogxK
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U2 - 10.4003/006.030.0105
DO - 10.4003/006.030.0105
M3 - Article
AN - SCOPUS:84857875285
SN - 0740-2783
VL - 30
SP - 59
EP - 72
JO - American Malacological Bulletin
JF - American Malacological Bulletin
IS - 1
ER -