TY - JOUR
T1 - Drivers for genetic structure at different geographic scales for Pacific red snapper (Lutjanus peru) and yellow snapper (Lutjanus argentiventris) in the tropical eastern Pacific
AU - Reguera-Rouzaud, Nicole
AU - Díaz-Viloria, Noé
AU - Pérez-Enríquez, Ricardo
AU - Espino-Barr, Elaine
AU - Rivera-Lucero, Mailin Isabel
AU - Munguía-Vega, Adrián
N1 - Publisher Copyright:
© 2020 Fisheries Society of the British Isles
PY - 2021/5
Y1 - 2021/5
N2 - The tropical eastern Pacific (TEP) is a highly dynamic region and a model system to study how habitat discontinuities affect the distribution of shorefishes, particularly for species that display ontogenetic habitat shifts, including snappers (Lutjanidae). To evaluate the genetic structure of the Pacific red snapper (Lutjanus peru) and the yellow snapper (Lutjanus argentiventris) throughout their distribution range along the TEP, 13 and 11 microsatellite loci were analysed, respectively. The genetic diversity of L. peru (N = 446) and L. argentiventris (N = 170) was evaluated in 10 and 5 localities, respectively, showing slightly higher but non-significant values in the Gulf of California for both species. The genetic structure analysis identified the presence of significant genetic structure in both species, but the locations of the identified barriers for the gene flow differed between species. The principal driver for the genetic structure at large scales >2500 km was isolation by distance. At smaller scales (<250 km), the habitat discontinuity for juveniles and adults and the environmental differences throughout the distribution range represented potential barriers to gene flow between populations for both species.
AB - The tropical eastern Pacific (TEP) is a highly dynamic region and a model system to study how habitat discontinuities affect the distribution of shorefishes, particularly for species that display ontogenetic habitat shifts, including snappers (Lutjanidae). To evaluate the genetic structure of the Pacific red snapper (Lutjanus peru) and the yellow snapper (Lutjanus argentiventris) throughout their distribution range along the TEP, 13 and 11 microsatellite loci were analysed, respectively. The genetic diversity of L. peru (N = 446) and L. argentiventris (N = 170) was evaluated in 10 and 5 localities, respectively, showing slightly higher but non-significant values in the Gulf of California for both species. The genetic structure analysis identified the presence of significant genetic structure in both species, but the locations of the identified barriers for the gene flow differed between species. The principal driver for the genetic structure at large scales >2500 km was isolation by distance. At smaller scales (<250 km), the habitat discontinuity for juveniles and adults and the environmental differences throughout the distribution range represented potential barriers to gene flow between populations for both species.
KW - Gulf of California
KW - habitat discontinuity
KW - isolation by distance
KW - larval dispersal
KW - microsatellites
UR - http://www.scopus.com/inward/record.url?scp=85099453751&partnerID=8YFLogxK
U2 - 10.1111/jfb.14656
DO - 10.1111/jfb.14656
M3 - Artículo
C2 - 33349917
AN - SCOPUS:85099453751
SN - 0022-1112
VL - 98
SP - 1267
EP - 1280
JO - Journal of Fish Biology
JF - Journal of Fish Biology
IS - 5
ER -