2018
Martins, Karina; Gugger, Paul F.; Llanderal-Mendoza, Jesus; González-Rodríguez, Antonio; Fitz-Gibbon, Sorel T.; Zhao, Jian Li; Rodríguez-Correa, Hernando; Oyama, Ken; Sork, Victoria L.
Landscape genomics provides evidence of climate-associated genetic variation in Mexican populations of Quercus rugosa Artículo de revista
En: Evolutionary Applications, vol. 11, iss. 10, pp. 1842-1858, 2018, ISSN: 17524571.
Resumen | Enlaces | Etiquetas: assisted gene flow, climate change, genotyping by sequencing, landscape genomics, natural selection, Quercus, restoration, Trans-Mexican Volcanic Belt
@article{Martins2018,
title = {Landscape genomics provides evidence of climate-associated genetic variation in Mexican populations of Quercus rugosa},
author = {Karina Martins and Paul F. Gugger and Jesus Llanderal-Mendoza and Antonio González-Rodríguez and Sorel T. Fitz-Gibbon and Jian Li Zhao and Hernando Rodríguez-Correa and Ken Oyama and Victoria L. Sork},
doi = {10.1111/eva.12684},
issn = {17524571},
year = {2018},
date = {2018-01-01},
journal = {Evolutionary Applications},
volume = {11},
issue = {10},
pages = {1842-1858},
publisher = {Wiley-Blackwell},
abstract = {Local adaptation is a critical evolutionary process that allows plants to grow better in their local compared to non-native habitat and results in species-wide geographic patterns of adaptive genetic variation. For forest tree species with a long generation time, this spatial genetic heterogeneity can shape the ability of trees to respond to rapid climate change. Here, we identify genomic variation that may confer local environmental adaptations and then predict the extent of adaptive mismatch under future climate as a tool for forest restoration or management of the widely distributed high-elevation oak species Quercus rugosa in Mexico. Using genotyping by sequencing, we identified 5,354 single nucleotide polymorphisms (SNPs) genotyped from 103 individuals across 17 sites in the Trans-Mexican Volcanic Belt, and, after controlling for neutral genetic structure, we detected 74 FST outlier SNPs and 97 SNPs associated with climate variation. Then, we deployed a nonlinear multivariate model, Gradient Forests, to map turnover in allele frequencies along environmental gradients and predict areas most sensitive to climate change. We found that spatial patterns of genetic variation were most strongly associated with precipitation seasonality and geographic distance. We identified regions of contemporary genetic and climatic similarities and predicted regions where future populations of Q. rugosa might be at risk due to high expected rate of climate change. Our findings provide preliminary details for future management strategies of Q. rugosa in Mexico and also illustrate how a landscape genomic approach can provide a useful tool for conservation and resource management strategies.},
keywords = {assisted gene flow, climate change, genotyping by sequencing, landscape genomics, natural selection, Quercus, restoration, Trans-Mexican Volcanic Belt},
pubstate = {published},
tppubtype = {article}
}
Local adaptation is a critical evolutionary process that allows plants to grow better in their local compared to non-native habitat and results in species-wide geographic patterns of adaptive genetic variation. For forest tree species with a long generation time, this spatial genetic heterogeneity can shape the ability of trees to respond to rapid climate change. Here, we identify genomic variation that may confer local environmental adaptations and then predict the extent of adaptive mismatch under future climate as a tool for forest restoration or management of the widely distributed high-elevation oak species Quercus rugosa in Mexico. Using genotyping by sequencing, we identified 5,354 single nucleotide polymorphisms (SNPs) genotyped from 103 individuals across 17 sites in the Trans-Mexican Volcanic Belt, and, after controlling for neutral genetic structure, we detected 74 FST outlier SNPs and 97 SNPs associated with climate variation. Then, we deployed a nonlinear multivariate model, Gradient Forests, to map turnover in allele frequencies along environmental gradients and predict areas most sensitive to climate change. We found that spatial patterns of genetic variation were most strongly associated with precipitation seasonality and geographic distance. We identified regions of contemporary genetic and climatic similarities and predicted regions where future populations of Q. rugosa might be at risk due to high expected rate of climate change. Our findings provide preliminary details for future management strategies of Q. rugosa in Mexico and also illustrate how a landscape genomic approach can provide a useful tool for conservation and resource management strategies.
2017
Pérez-Crespo, María José; Ornelas, Juan Francisco; González-Rodríguez, Antonio; Ruiz-Sanchez, Eduardo; Vásquez-Aguilar, Antonio Acini; Ramírez-Barahona, Santiago
En: Journal of Biogeography, vol. 44, iss. 11, pp. 2501-2514, 2017, ISSN: 13652699.
Resumen | Enlaces | Etiquetas: Loranthaceae, Mesoamerica, Mexico, Mistletoes, Phylogeography, Pleistocene, Psittacanthus, Trans-Mexican Volcanic Belt
@article{nokey,
title = {Phylogeography and population differentiation in the Psittacanthus calyculatus (Loranthaceae) mistletoe: a complex scenario of climate–volcanism interaction along the Trans-Mexican Volcanic Belt},
author = {María José Pérez-Crespo and Juan Francisco Ornelas and Antonio González-Rodríguez and Eduardo Ruiz-Sanchez and Antonio Acini Vásquez-Aguilar and Santiago Ramírez-Barahona},
doi = {10.1111/jbi.13070},
issn = {13652699},
year = {2017},
date = {2017-01-01},
journal = {Journal of Biogeography},
volume = {44},
issue = {11},
pages = {2501-2514},
publisher = {Blackwell Publishing Ltd},
abstract = {Aim: The formation of the Trans-Mexican Volcanic Belt (TMVB) played an important role in driving inter- and intraspecific diversification at high elevations. However, Pleistocene climate changes and ecological factors might also contribute to plant genetic structuring along the volcanic belt. Here, we analysed phylogeographical patterns of the parrot-mistletoe Psittacanthus calyculatus to determine the relative contribution of these different factors. Location: Trans-Mexican Volcanic Belt. Methods: Using nuclear and chloroplast DNA sequence data for 370 individuals, we investigate the genetic differentiation of 35 populations across the species range. We conducted phylogenetic, population and spatial genetic analyses of P. calyculatus sequences along with ecological niche modelling and Bayesian inference methods to gain insight into the structuring of genetic variation of these populations. Results: Our analyses revealed population structure with three genetic groups corresponding to individuals from Oaxaca and those from the central-eastern and western TMVB regions. A significant genetic signal of demographic expansion, an east-to-west expansion predicted by species distribution modelling, and approximate Bayesian computation analyses strongly supported a scenario of habitat isolation and invasion of TMVB by P. calyculatus during the late-Pleistocene. Main conclusions: The genetic differentiation of P. calyculatus may be explained by the combined effects of (1) geographical isolation linked to the effects of the glacial/interglacial cycles and environmental factors, driving genetic differentiation from congeners into more xeric vegetation and (2) the invasion of TMVB from east to west, suggesting a role for both colonization and glacial/interglacial cycles models.},
keywords = {Loranthaceae, Mesoamerica, Mexico, Mistletoes, Phylogeography, Pleistocene, Psittacanthus, Trans-Mexican Volcanic Belt},
pubstate = {published},
tppubtype = {article}
}
Aim: The formation of the Trans-Mexican Volcanic Belt (TMVB) played an important role in driving inter- and intraspecific diversification at high elevations. However, Pleistocene climate changes and ecological factors might also contribute to plant genetic structuring along the volcanic belt. Here, we analysed phylogeographical patterns of the parrot-mistletoe Psittacanthus calyculatus to determine the relative contribution of these different factors. Location: Trans-Mexican Volcanic Belt. Methods: Using nuclear and chloroplast DNA sequence data for 370 individuals, we investigate the genetic differentiation of 35 populations across the species range. We conducted phylogenetic, population and spatial genetic analyses of P. calyculatus sequences along with ecological niche modelling and Bayesian inference methods to gain insight into the structuring of genetic variation of these populations. Results: Our analyses revealed population structure with three genetic groups corresponding to individuals from Oaxaca and those from the central-eastern and western TMVB regions. A significant genetic signal of demographic expansion, an east-to-west expansion predicted by species distribution modelling, and approximate Bayesian computation analyses strongly supported a scenario of habitat isolation and invasion of TMVB by P. calyculatus during the late-Pleistocene. Main conclusions: The genetic differentiation of P. calyculatus may be explained by the combined effects of (1) geographical isolation linked to the effects of the glacial/interglacial cycles and environmental factors, driving genetic differentiation from congeners into more xeric vegetation and (2) the invasion of TMVB from east to west, suggesting a role for both colonization and glacial/interglacial cycles models.