Pubblicazione scientifica

Hypersalinity drives physiological and morphological changes in Limia perugiae (Poeciliidae)

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
trasformazione e commercializzazione

RIASSUNTO

ABSTRACT

A fundamental question in biology is how an organism's morphology and physiology are shaped by its environment. Here, we evaluate the effects of a hypersaline environment on the morphology and physiology of a population of livebearing fish in the genus Limia (Poeciliidae). We sampled from two populations of Limia perugiae (one freshwater and one hypersaline) in the southwest Dominican Republic. We evaluated relative abundance of osmoregulatory proteins using western blot analyses and used a geometric morphometric approach to evaluate fine-scale changes to size and shape. Our data show that gill tissue isolated from hypersaline fish contained approximately two and a half times higher expression of Na+/K+ ATPase proteins. We also show evidence for mitochondrial changes within the gills, with eight times more complex I and four times higher expression of ATP synthase within the gill tissue from the hypersaline population. The energetic consequences to Limia living in saline and hypersaline environments may be a driver for phenotypic diversity, reducing the overall body size and changing the relative size and shape of the head, as well as impeding the growth of secondary sex features among the males.

DATA

Data di pubblicazione: 11/07/2016

AUTORI

WEAVER PABLO F
TELLO OSCAR
KRIEGER JONATHAN
MARMOLEJO ARLEN
WEAVER KATHLEEN F
GARCIA JEROME V
CRUZ ALEXANDER

ENTE DI AFFERENZA

DEPT BIOLOGY UNIV LA VERNE
HERBARIUM LIBRARY ART & ARCHIVES DIRECTORATE ROYAL BOTANIC GARDENS KEW RICHMOND SURREY TW9 3AE UK
INST INVESTIGACIONES BOTANICAS Y ZOOLOGICAS PROF RAFAEL M MOSCOSO UNIV AUTONOMA DE SANTO DOMINGO SANTO DOMINGO DOMINICAN REPUBLIC
DEPT ECOLOGY & EVOLUTIONARY BIOLOGY UNIV COLORADO BOULDER CO 80309 0334 USA

RIVISTA

Biology Open, 5(8), 1093-1101

IMPACT FACTOR

1,980

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