2021
Zorrilla-Azcué, Sofía; González-Rodríguez, Antonio; Oyama, Ken; González, Mailyn A.; Rodríguez-Correa, Hernando
The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes Artículo de revista
En: Ecology and Evolution, vol. 11, iss. 11, pp. 6814-6828, 2021, ISSN: 20457758.
Resumen | Enlaces | Etiquetas: genetic diversity and structure, historical connectivity, historical demography, Neotropical trees, Oaks, Phylogeography, Pleistocene, Quercus
@article{nokey,
title = {The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes},
author = {Sofía Zorrilla-Azcué and Antonio González-Rodríguez and Ken Oyama and Mailyn A. González and Hernando Rodríguez-Correa},
doi = {10.1002/ece3.7529},
issn = {20457758},
year = {2021},
date = {2021-01-01},
journal = {Ecology and Evolution},
volume = {11},
issue = {11},
pages = {6814-6828},
publisher = {John Wiley and Sons Ltd},
abstract = {The climatic and geological changes that occurred during the Quaternary, particularly the fluctuations during the glacial and interglacial periods of the Pleistocene, shaped the population demography and geographic distribution of many species. These processes have been studied in several groups of organisms in the Northern Hemisphere, but their influence on the evolution of Neotropical montane species and ecosystems remains unclear. This study contributes to the understanding of the effect of climatic fluctuations during the late Pleistocene on the evolution of Andean mountain forests. First, we describe the nuclear and plastidic DNA patterns of genetic diversity, structure, historical demography, and landscape connectivity of Quercus humboldtii, which is a typical species in northern Andean montane forests. Then, these patterns were compared with the palynological and evolutionary hypotheses postulated for montane forests of the Colombian Andes under climatic fluctuation scenarios during the Quaternary. Our results indicated that populations of Q. humboldtii have high genetic diversity and a lack of genetic structure and that they have experienced a historical increase in connectivity from the last glacial maximum (LGM) to the present. Furthermore, our results showed a dramatic reduction in the effective population size followed by an expansion before the LGM, which is consistent with the results found by palynological studies, suggesting a change in dominance in Andean forests that may be related to ecological factors rather than climate change.},
keywords = {genetic diversity and structure, historical connectivity, historical demography, Neotropical trees, Oaks, Phylogeography, Pleistocene, Quercus},
pubstate = {published},
tppubtype = {article}
}
2020
Peñaloza-Ramírez, Juan Manuel; Rodríguez-Correa, Hernando; González-Rodríguez, Antonio; Rocha-Ramírez, Víctor; Oyama, Ken
High genetic diversity and stable Pleistocene distributional ranges in the widespread Mexican red oak Quercus castanea Née (1801) (Fagaceae) Artículo de revista
En: Ecology and Evolution, vol. 10, iss. 10, pp. 4204-4219, 2020, ISSN: 20457758.
Resumen | Enlaces | Etiquetas: genetic variation, historical demography, Mexican Highlands, Neotropical trees, Oaks, Phylogeography
@article{nokey,
title = {High genetic diversity and stable Pleistocene distributional ranges in the widespread Mexican red oak Quercus castanea Née (1801) (Fagaceae)},
author = {Juan Manuel Peñaloza-Ramírez and Hernando Rodríguez-Correa and Antonio González-Rodríguez and Víctor Rocha-Ramírez and Ken Oyama},
doi = {10.1002/ece3.6189},
issn = {20457758},
year = {2020},
date = {2020-01-01},
journal = {Ecology and Evolution},
volume = {10},
issue = {10},
pages = {4204-4219},
publisher = {John Wiley and Sons Ltd},
abstract = {The Mexican highlands are areas of high biological complexity where taxa of Nearctic and Neotropical origin and different population histories are found. To gain a more detailed view of the evolution of the biota in these regions, it is necessary to evaluate the effects of historical tectonic and climate events on species. Here, we analyzed the phylogeographic structure, historical demographic processes, and the contemporary period, Last Glacial Maximum (LGM) and Last Interglacial (LIG) ecological niche models of Quercus castanea, to infer the historical population dynamics of this oak distributed in the Mexican highlands. A total of 36 populations of Q. castanea were genotyped with seven chloroplast microsatellite loci in four recognized biogeographic provinces of Mexico: the Sierra Madre Occidental (western mountain range), the Central Plateau, the Trans-Mexican Volcanic Belt (TMVB, mountain range crossing central Mexico from west to east) and the Sierra Madre del Sur (SMS, southern mountain range). We obtained standard statistics of genetic diversity and structure and tested for signals of historical demographic expansions. A total of 90 haplotypes were identified, and 29 of these haplotypes were restricted to single populations. The within-population genetic diversity was high (mean hS = 0.72), and among-population genetic differentiation showed a strong phylogeographic structure (NST = 0.630 > GST = 0.266; p <.001). Signals of demographic expansion were identified in the TMVB and the SMS. The ecological niche models suggested a considerable percentage of stable distribution area for the species during the LGM and connectivity between the TMVB and the SMS. High genetic diversity, strong phylogeographic structure, and ecological niche models suggest in situ permanence of Q. castanea populations with large effective population sizes. The complex geological and climatic histories of the TMVB help to explain the origin and maintenance of a large proportion of the genetic diversity in this oak species.},
keywords = {genetic variation, historical demography, Mexican Highlands, Neotropical trees, Oaks, Phylogeography},
pubstate = {published},
tppubtype = {article}
}
2017
Rodríguez-Correa, Hernando; Oyama, Ken; Quesada, Mauricio; Fuchs, Eric J.; Quezada, Maura; Ferrufino, Lilian; Valencia-Ávalos, Susana; Cascante-Marín, Alfredo; González-Rodríguez, Antonio
Complex phylogeographic patterns indicate Central American origin of two widespread Mesoamerican Quercus (Fagaceae) species Artículo de revista
En: Tree Genetics and Genomes, vol. 13, iss. 3, 2017, ISSN: 16142950.
Resumen | Enlaces | Etiquetas: historical demography, Middle America, Neotropical trees, Palaeodistribution, Phylogeography
@article{Rodriguez-Correa2017,
title = {Complex phylogeographic patterns indicate Central American origin of two widespread Mesoamerican Quercus (Fagaceae) species},
author = {Hernando Rodríguez-Correa and Ken Oyama and Mauricio Quesada and Eric J. Fuchs and Maura Quezada and Lilian Ferrufino and Susana Valencia-Ávalos and Alfredo Cascante-Marín and Antonio González-Rodríguez},
doi = {10.1007/s11295-017-1147-7},
issn = {16142950},
year = {2017},
date = {2017-01-01},
journal = {Tree Genetics and Genomes},
volume = {13},
issue = {3},
publisher = {Tree Genetics & Genomes},
abstract = {The northern Neotropical region is characterized by a heterogeneous geological and climatic history. Recent studies have shown contrasting patterns regarding the role of geographic elements as barriers that could have determined phylogeographic structure in various species. Recently, the phylogeography and biogeography of Quercus species have been studied intensively, and the patterns observed so far suggest contrasting evolutionary histories for Neotropical species in comparison with their Holarctic relatives. The goal of this study was to describe the phylogeographic structure of two Neotropical oak species (Quercus insignis and Quercus sapotifolia) in the context of the geological and palaeoclimatic history of the northern Neotropics. Populations through the distribution range of both species were collected and characterized using nine chloroplast DNA microsatellite loci. Both oak species showed high levels of genetic diversity and strong phylogeographic structure. The distribution of genetic variation in Q. insignis suggested an influence of two major barriers, the Isthmus of Tehuantepec and the Nicaraguan Depression, while Q. sapotifolia exhibited a genetic structure defined by the heterogeneity of the Chortis highlands. The haplotype networks of both species indicated complex histories, suggesting that colonization from the Sierra Madre de Chiapas to central Mexico and from the north of the Nicaraguan Depression to the Costa Rican mountains may have occurred during different stages, and apparently more than one time. In conclusion, the phylogeographic structure of Neotropical oak species seems to be defined by a combination of geological and climatic events.},
keywords = {historical demography, Middle America, Neotropical trees, Palaeodistribution, Phylogeography},
pubstate = {published},
tppubtype = {article}
}
2015
Rodríguez-Correa, Hernando; Oyama, Ken; Macgregor-Fors, Ian; González-Rodríguez, Antonio
How are oaks distributed in the neotropics? A perspective from species turnover, areas of endemism, and climatic niches Artículo de revista
En: International Journal of Plant Sciences, vol. 176, iss. 3, pp. 222-231, 2015, ISSN: 10585893.
Resumen | Enlaces | Etiquetas: biogeography, Distribution, Diversity, Neotropical trees, Quercus
@article{Rodriguez-Correa2015,
title = {How are oaks distributed in the neotropics? A perspective from species turnover, areas of endemism, and climatic niches},
author = {Hernando Rodríguez-Correa and Ken Oyama and Ian Macgregor-Fors and Antonio González-Rodríguez},
doi = {10.1086/679904},
issn = {10585893},
year = {2015},
date = {2015-01-01},
journal = {International Journal of Plant Sciences},
volume = {176},
issue = {3},
pages = {222-231},
abstract = {Premise of research. The most important diversity hot spot of genus Quercus (Fagaceae) in America is situated in southern Mexico. From this area down to the Colombian Andes, oak species diversity decreases considerably, but the pattern of species distribution and turnover has not been analyzed. This study aimed at determining geographical patterns of species turnover, species distribution, and endemism for Neotropical Quercus species. Methodology. Occurrence records for 58 oak species belonging to the Quercus and Lobatae sections were obtained. Patterns of species turnover were determined by comparing species composition among latitudinal/ longitudinal units. Areas of endemism were determined using weighted networks. The potential distribution of oak species was determined using ecological niche models. Finally, a principal component analysis was used to identify changes in the oak species’ ecological niche across areas. Pivotal results. The species composition analysis indicated that the Tehuantepec Isthmus, the Nicaraguan Depression, and the Panamanian Isthmus represent species turnover points. Nine areas of endemism were recovered, distributed through mountainous ranges from Mexico to Costa Rica. Most of these areas were delimited by the species turnover points detected. Ecological niche modeling indicated that the turnover points represent areas with low climatic suitability for most oak species and represent discontinuities in the distribution of Quercus. Niche comparisons suggest niche differentiation among species distributed in different areas of endemism or on opposite sides of turnover points. Conclusions. The results indicate that the Tehuantepec Isthmus, the Nicaraguan Depression, and the Panamanian Isthmus have acted as important barriers to the dispersal of oak species, influencing species diversity, biogeographic patterns, and niche divergence.},
keywords = {biogeography, Distribution, Diversity, Neotropical trees, Quercus},
pubstate = {published},
tppubtype = {article}
}