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883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial, UNAM

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://www.revista.ib.unam.mx/index.php/bio/article/view/282/1325

100.1.#.a: Peñaloza Ramírez, Juan Manuel; Aguilar Amezquita, Bernardo; Núñez Farfán, Juan; Pérez Nasser, Nidia

524.#.#.a: Peñaloza Ramírez, Juan Manuel, et al. (2016). Consequences of habitat fragmentation on genetic structure of Chamaedorea alternans (Arecaceae) palm populations in the tropical rain forests of Los Tuxtlas, Veracruz, Mexico. Revista Mexicana de Biodiversidad; Vol. 87, núm. 3, 2016: septiembre. Recuperado de https://repositorio.unam.mx/contenidos/23577

245.1.0.a: Consequences of habitat fragmentation on genetic structure of Chamaedorea alternans (Arecaceae) palm populations in the tropical rain forests of Los Tuxtlas, Veracruz, Mexico

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Biología, UNAM

264.#.0.c: 2016

264.#.1.c: 2016-09-20

653.#.#.a: Tropical forest; Genetic diversity; Genetic bottlenecks; Bayesian cluster analysis; Test of natural selection

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2016-09-20, para un uso diferente consultar al responsable jurídico del repositorio por medio de falvarez@ib.unam.mx

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520.3.#.a: Chamaedorea alternans is a palm species that has suffered from selective extraction, and habitat loss. We collected 11 populations from fragmented and conserved forest. We assess genetic variation of C. alternans, genetic exchange, differentiation, bottlenecks, effective population size and signals of natural selection. Genetic diversity was higher in conserved than in fragmented forest but not significant. Fragmentation did not play a significant role in genetic diversity, possibly due to the populations heterogeneity. C. alternans has been subject to a pronounced isolation of trees as a product of logging, thus raising inbreeding. Bayesian clustering show a trend towards an increased structuring over the course of generations but also, indicates that populations have recently gone through a bottleneck. The bottleneck following deforestation was not severe enough to lower the effective size, this could lead to high standing genetic diversity, providing a buffer against genetic erosion. We observed directional and balancing selection in C. alternans. Maintenance of variability and increased differentiation signify that their populations have been subject to a differential selective pressure at the ecological and the landscape level, combined effect could lead to disturb pollination and dispersion processes, modifying in the long term the effective population size.

773.1.#.t: Revista Mexicana de Biodiversidad; Vol. 87, núm. 3 (2016): septiembre

773.1.#.o: http://www.revista.ib.unam.mx/index.php/bio

046.#.#.j: 2021-02-09 00:00:00.000000

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310.#.#.a: Trimestral

780.1.2.t: Anales del Instituto de Biología serie Botánica y Anales del Instituto de Biología serie Zoología

264.#.1.b: Instituto de Biología, UNAM

758.#.#.1: http://www.revista.ib.unam.mx/index.php/bio

doi: https://doi.org/10.1016/j.rmb.2016.07.004

handle: 4006b45aaad6946f

harvesting_date: 2020-09-23 00:00:00.0

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Artículo

Consequences of habitat fragmentation on genetic structure of Chamaedorea alternans (Arecaceae) palm populations in the tropical rain forests of Los Tuxtlas, Veracruz, Mexico

Peñaloza Ramírez, Juan Manuel; Aguilar Amezquita, Bernardo; Núñez Farfán, Juan; Pérez Nasser, Nidia

Instituto de Biología, UNAM, publicado en Revista Mexicana de Biodiversidad, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Peñaloza Ramírez, Juan Manuel, et al. (2016). Consequences of habitat fragmentation on genetic structure of Chamaedorea alternans (Arecaceae) palm populations in the tropical rain forests of Los Tuxtlas, Veracruz, Mexico. Revista Mexicana de Biodiversidad; Vol. 87, núm. 3, 2016: septiembre. Recuperado de https://repositorio.unam.mx/contenidos/23577

Descripción del recurso

Autor(es)
Peñaloza Ramírez, Juan Manuel; Aguilar Amezquita, Bernardo; Núñez Farfán, Juan; Pérez Nasser, Nidia
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Consequences of habitat fragmentation on genetic structure of Chamaedorea alternans (Arecaceae) palm populations in the tropical rain forests of Los Tuxtlas, Veracruz, Mexico
Fecha
2016-09-20
Resumen
Chamaedorea alternans is a palm species that has suffered from selective extraction, and habitat loss. We collected 11 populations from fragmented and conserved forest. We assess genetic variation of C. alternans, genetic exchange, differentiation, bottlenecks, effective population size and signals of natural selection. Genetic diversity was higher in conserved than in fragmented forest but not significant. Fragmentation did not play a significant role in genetic diversity, possibly due to the populations heterogeneity. C. alternans has been subject to a pronounced isolation of trees as a product of logging, thus raising inbreeding. Bayesian clustering show a trend towards an increased structuring over the course of generations but also, indicates that populations have recently gone through a bottleneck. The bottleneck following deforestation was not severe enough to lower the effective size, this could lead to high standing genetic diversity, providing a buffer against genetic erosion. We observed directional and balancing selection in C. alternans. Maintenance of variability and increased differentiation signify that their populations have been subject to a differential selective pressure at the ecological and the landscape level, combined effect could lead to disturb pollination and dispersion processes, modifying in the long term the effective population size.
Tema
Tropical forest; Genetic diversity; Genetic bottlenecks; Bayesian cluster analysis; Test of natural selection
Idioma
eng
ISSN
2007-8706; 1870-3453

Enlaces