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Filogeografía de Holothuria (Halodeima) inornata Semper, 1868 (Echinodermata: Holothuroidea)

Authors: Elba Prieto-Rios; Francisco Alonso Solís-Marín; Giomar Helena Borrero-Pérez; Píndaro Díaz-Jaimes;

Filogeografía de Holothuria (Halodeima) inornata Semper, 1868 (Echinodermata: Holothuroidea)

Abstract

Se evaluó la estructura genética de las poblaciones de Holothuria (Halodeima) inornata Semper, 1868, y se investigó cuáles podrían ser las barreras para el flujo de genes y procesos históricos. Se recolectaron muestras tratando de abarcar su ámbito de distribución, desde México hasta el norte de Perú. Con base en secuencias del gen COI se detectaron 118 haplotipos en 220 individuos y las diferencias entre dichos haplotipos fueron debidas a 97 sitios variables (21.41%) en los 453 pb secuenciados. Se observó una alta diversidad de haplotipos (h=0.979) y moderada diversidad nucleotídica (π=0.017). Para analizar la diferenciación genética, se utilizaron los valores de Fst, el test exacto de diferenciación poblacional y los análisis de varianza molecular (AMOVA). Estos análisis sugieren que existen dos poblaciones: las del norte, frente a las costas de: Sinaloa, Jalisco, Michoacán, Guerrero y Oaxaca; y las del sur, frente a las costas de: Chiapas, El Salvador, Panamá y Perú. Los acontecimientos históricos y los patrones oceanográficos podrían ser los principales factores que determinaron la dispersión y estructura de la población de H. inornata, es probable que la población original se haya extendido inicialmente en el sur y luego hacia el norte. Además, la separación entre estas dos poblaciones podría deberse al Golfo de Tehuantepec, el cual está constituido por una serie de eventos tectónicos y oceanográficos que constituyen una barrera para el asentamiento de H. inornata.

Keywords

Eastern Tropical Pacific, QH301-705.5, mtDNA, Biología, Science, Pacífico Oriental Tropical, Q, Peru., ADNmt, Equinodermos, Perú., Perú, Peru, Holothuria (Halodeima) inornata, Biology (General), sea cucumber, Echinoderms

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
10
Top 10%
Average
Average
Green
gold