Pubblicazione scientifica

The genome of common long-arm octopus Octopus minor

FILONE TECNOLOGICO	TEMA
produzione e raccolta

RIASSUNTO

Abstract

Background

The common long-arm octopus (Octopus minor) is found in mudflats of subtidal zones and faces numerous environmental challenges. The ability to adapt its morphology and behavioral repertoire to diverse environmental conditions makes the species a promising model for understanding genomic adaptation and evolution in cephalopods.

Findings

The final genome assembly of O. minor is 5.09 Gb, with a contig N50 size of 197 kb and longest size of 3.027 Mb, from a total of 419 Gb raw reads generated using the Pacific Biosciences RS II platform. We identified 30,010 genes; 44.43% of the genome is composed of repeat elements. The genome-wide phylogenetic tree indicated the divergence time between O. minor and Octopus bimaculoides was estimated to be 43 million years ago based on single-copy orthologous genes. In total, 178 gene families are expanded in O. minor in the 14 bilaterian species.

Conclusions

We found that the O. minor genome was larger than that of closely related O. bimaculoides, and this difference could be explained by enlarged introns and recently diversified transposable elements. The high-quality O. minor genome assembly provides a valuable resource for understanding octopus genome evolution and the molecular basis of adaptations to mudflats.

DATA

Data di pubblicazione: 25/09/2018

AUTORI

KIM BO-MI
KANG SEUNGHYUN
AHN DO-HWAN
JUNG SEUNG-HYUN
RHEE HWANSEOK
YOO JONG SU
LEE JONG-EUN
LEE SEUNGJAE
HAN YONG-HEE
RYU KYOUNG-BIN
CHO SUNG-JIN
PARK HYUN
AN HYE SUCK

ENTE DI AFFERENZA

UNIT OF POLAR GENOMICS KOREA POLAR RSCH INST KOPRI INCHEON 21990 KOREA
DEPT GENETIC RESOURCES RSCH NATL MARINE BIODIVERSITY INST KOREA MABIK JANGHANG EUP SEOCHUN GUN CHUNGCHUNGNAM DO 33662 KOREA
GENOMICS LAB CLUSTER CTR DNA LINK INC
SCHOOL OF BIOLOGICAL SCIENCES COLLEGE OF NATURAL SCIENCES CHUNGBUK NATL UNIV CHEONGJU CHUNGBUK 28644 KOREA
POLAR SCIENCES UNIV SCIENCE & TECH YUSEONG GU DAEJEON 34113 KOREA

RIVISTA

GigaScience, 7(11), giy119

IMPACT FACTOR

6,950

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