Pubblicazione scientifica

The Piranha Genome Provides Molecular Insight Associated to Its Unique Feeding Behavior

FILONE TECNOLOGICO	TEMA
trasformazione e commercializzazione

RIASSUNTO

Abstract

The piranha enjoys notoriety due to its infamous predatory behavior but much is still not understood about its evolutionary origins and the underlying molecular mechanisms for its unusual feeding biology. We sequenced and assembled the red-bellied piranha (Pygocentrus nattereri) genome to aid future phenotypic and genetic investigations. The assembled draft genome is similar to other related fishes in repeat composition and gene count. Our evaluation of genes under positive selection suggests candidates for adaptations of piranhas’ feeding behavior in neural functions, behavior, and regulation of energy metabolism. In the fasted brain, we find genes differentially expressed that are involved in lipid metabolism and appetite regulation as well as genes that may control the aggression/boldness behavior of hungry piranhas. Our first analysis of the piranha genome offers new insight and resources for the study of piranha biology and for feeding motivation and starvation in other organisms.

DATA

Data di pubblicazione: 08/07/2019

AUTORI

SCHARTL MANFRED
KNEITZ SUSANNE
VOLKOFF HELENE
ADOLFI MATEUS
SCHMIDT CORNELIA
FISCHER PETRA
MINX PATRICK
TOMLINSON CHAD
MEYER AXEL
WARREN WESLEY C

ENTE DI AFFERENZA

PHYSIOLOGISCHE CHEM BIO ZTR UNIV WURZBURG GERMANY
COMPREHENSIVE CANCER CTR MAINFRANKEN UNIV CLINIC WURZBURG GERMANY
HAGLER INST ADV STUDY TEXAS A & M UNIV
DEPT BIOLOGY TEXAS A & M UNIV
DEPARTMENT OF BIOLOGY MEMORIAL UNIVERSITY OF NEWFOUNDLAND ST JOHN’S CANADA
DEPARTMENT OF BIOCHEMISTRY MEMORIAL UNIVERSITY OF NEWFOUNDLAND ST JOHN’S CANADA
MCDONNELL GENOME INST WASHINGTON UNIV SCHOOL OF MEDICINE
CHAIR IN ZOOLOGY & EVOLUTIONARY BIOLOGY UNIV KONSTANZ GERMANY
BOND LIFE SCIENCES CTR UNIV MISSOURI

RIVISTA

Genome Biology and Evolution, 11(8), 2099-2106

IMPACT FACTOR

3,726

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