02977nas a2200289   4500008004100000020001400041245017000055210006900225260001200294300001600306490000700322520198600329653001402315653001702329653001802346653003002364653001802394653002402412653003502436653002202471100003202493700003602525700002402561700001902585700002202604856006102626       2018                        eng d  a1365-269900aThe interplay of riverscape features and exotic introgression on the genetic structure of the Mexican golden trout (Oncorhynchus chrysogaster), a simulation approach0 ainterplay of riverscape features and exotic introgression on the  c2018///  a1500 - 15140 v453 aAim We explored the factors between riverscape features and exotic introgression of cultured rainbow trout (Oncorhynchus mykiss) that drive the current genetic structure in the endemic Mexican golden trout (Oncorhynchus chrysogaster) using a riverscape genetics simulator. Location Sierra Madre Occidental, Northwest Mexico, North America. Methods We created a system model for Mexican golden trout to test various scenarios for the effect of riverscape resistance and rainbow trout introgression on the native genetic structure of the Mexican golden trout. Individual genotypes were used to initialize the model and were based upon empirical allele frequencies from three genetically and spatially distinct groups in the study area. The geographical location of the simulated populations was defined using a species distribution model. We included hypotheses for movement of riverine distance and riverscape resistance. We evaluated model performance by conducting population and landscape genetics analyses on the simulation outputs. Results The most plausible scenario included riverscape resistance without introgression, which presented a spatial genetic structure matching the observed riverscape genetic structure and fitting expected general life-history patterns for high elevation trout streams. In addition, temperature, precipitation, hydrology and topography were the most important variables influencing species occurrence and dispersal. Main conclusion This work presents one of the first empirically derived simulation studies of introgression. It highlights the importance of considering riverscape resistance (i.e. hydroclimatic and topographical gradient effects) in models of spatial genetic structure and introgression. Moreover, our modelling suggests that what we characterize as riverscape resistance is acting as a boundary against exotic introgression. The results of this study could help to develop management strategies that preserve native gene pools.10aCDMetaPOP10aexotic trout10aMexican trout10aOncorhynchus chrysogaster10arainbow trout10ariverscape genetics10aspecies distribution modelling10aTruchas Mexicanas1 aEscalante, Marco, Alejandro1 aDe León, Francisco, J. García1 aRuiz‐Luna, Arturo1 aLandguth, Erin1 aManel, Stéphanie  uhttp://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.1324602045nas a2200337   4500008004100000020002500041245018600066210006900252260001600321300001600337490000600353520079600359653002501155653001801180653003001198653002801228653002201256100003601278700002601314700002401340700002801364700003101392700002601423700003401449700002201483700003801505700003501543700003701578700002901615856006301644       2013                        eng d  a1877-7252, 1877-726000aIsolation and characterization of 17 tetranucleotide microsatellite loci in the Mexican golden trout (Oncorhynchus chrysogaster, Needham & Gard 1964) derived from 454 pyrosequencing0 aIsolation and characterization of 17 tetranucleotide microsatell  c2013/05/14/  a1009 - 10120 v53 a<p>We present seventeen microsatellite loci developed for the Mexican golden trout Oncorhynchus chrysogaster through GS-FLX 454 pyrosequencing. We selected 34 primer pairs tested on 19 trout specimens from The Rio Verde (Rio Fuerte Bain) and we tested cross amplification on 35 trout specimens collected in seven hydrological basins from the Sierra Madre Occidental and Sierra San Pedro M&aacute;rtir, as well as five hatchery reared Oncorhynchus mykiss. We observed medium and high genetic variation among loci (mean number of alleles per locus = 8.0, SD = 2.92; mean H O = 0.65, SD = 0.27). These loci are the first to be characterized explicitly for O. chrysogaster and they are expected to be useful for population studies in this species and as reference for species delimitation.</p>
10aMexican golden trout10aMexican trout10aOncorhynchus chrysogaster10aSierra Madre Occidental10aTruchas Mexicanas1 aGarcía-De-León, Francisco, J.1 aLozano-Garza, Adrián1 aMayden, Richard, L.1 aDelgado-Vega, Rigoberto1 aCamarena-Rosales, Faustino1 aRuiz-Campos, Gorgonio1 aEscalante-Sánchez, Marco, A.1 aRuiz-Luna, Arturo1 aDel Río-Portilla, Miguel, Ángel1 aBarriga-Sosa, Irene, de los A.1 aArcos-Ortega, Guadalupe, Fabiola1 aPaniagua-Chávez, Carmen  uhttp://link.springer.com/article/10.1007/s12686-013-9956-y