TY - JOUR
T1 - Genetic variability and historic stability of the California spiny lobster Panulirus interruptus in the Gulf of California
AU - García-Rodríguez, Francisco J.
AU - Perez-Enriquez, Ricardo
AU - Medina-Espinoza, Armando
AU - Vega-Velázquez, Armando
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The California spiny lobster Panulirus interruptus ranges from California into the Gulf of California in Mexico. In Mexico, the lobster supports an economically important fishery. Lobsters in the Gulf of California may belong to a small and genetically distinct population. We determined the genetic diversity and population structure of P. interruptus, using mitochondrial DNA sequences of the control region and the 16SrRNA gene. Samples were collected in the Gulf of California, the west central and southwest coast of the Baja California Peninsula, and the United States. We found a slightly higher genetic diversity in the Gulf of California populations than in the Pacific, but no significant genetic differentiation was shown by an analysis of molecular variance. Using a spatial clustering model and Bayesian methods, the weak population structure was consistent with the absence of a phylogeographic pattern and genetic admixture analysis. However, mismatch distribution analysis suggests that lobster from the gulf represents a more stable and older population than the Pacific, which fitted a model of sudden population expansion. The clinal trend in several genetic parameters between the Gulf of California and the Pacific suggests a historical separation that has not yet resulted in a significant genetic differentiation by genetic drift, mainly because of the large size of the population. Implementation of independent fisheries management practices between these regions could be justified; however, biological and ecological information should be used to support genetic data.
AB - The California spiny lobster Panulirus interruptus ranges from California into the Gulf of California in Mexico. In Mexico, the lobster supports an economically important fishery. Lobsters in the Gulf of California may belong to a small and genetically distinct population. We determined the genetic diversity and population structure of P. interruptus, using mitochondrial DNA sequences of the control region and the 16SrRNA gene. Samples were collected in the Gulf of California, the west central and southwest coast of the Baja California Peninsula, and the United States. We found a slightly higher genetic diversity in the Gulf of California populations than in the Pacific, but no significant genetic differentiation was shown by an analysis of molecular variance. Using a spatial clustering model and Bayesian methods, the weak population structure was consistent with the absence of a phylogeographic pattern and genetic admixture analysis. However, mismatch distribution analysis suggests that lobster from the gulf represents a more stable and older population than the Pacific, which fitted a model of sudden population expansion. The clinal trend in several genetic parameters between the Gulf of California and the Pacific suggests a historical separation that has not yet resulted in a significant genetic differentiation by genetic drift, mainly because of the large size of the population. Implementation of independent fisheries management practices between these regions could be justified; however, biological and ecological information should be used to support genetic data.
KW - DNA sequencing
KW - Genetic diversity
KW - Mismatch distribution
KW - Phylogeography
KW - mtDNA
UR - http://www.scopus.com/inward/record.url?scp=84994560136&partnerID=8YFLogxK
U2 - 10.1016/j.fishres.2016.09.016
DO - 10.1016/j.fishres.2016.09.016
M3 - Artículo
SN - 0165-7836
VL - 185
SP - 130
EP - 136
JO - Fisheries Research
JF - Fisheries Research
ER -