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Genomic Survey and Microsatellite Marker Investigation of Patagonian Moray Cod (Muraenolepis orangiensis)open access

Authors
Choi, EunkyungLee, Seung JaeJo, EunaKim, JinmuParker, Steven J.Kim, Jeong-HoonPark, Hyun
Issue Date
7월-2022
Publisher
MDPI
Keywords
Muraenolepis orangiensis; Patagonian moray cod; microsatellite; SSR; Illumina
Citation
ANIMALS, v.12, no.13
Indexed
SCIE
SCOPUS
Journal Title
ANIMALS
Volume
12
Number
13
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/142767
DOI
10.3390/ani12131608
ISSN
2076-2615
Abstract
Simple Summary Patagonian moray cod is known to inhabit the cold waters near Antarctica, and it belongs to the Muraenolepis genus. This genus has seven species, and five of them are recently reported. The Muraenolepis genus has similar morphological characters, and this is a limitation of taxonomical classification. In this study, a genome survey and microsatellite marker analysis were conducted to characterize the genome profile for classification. As a result, genomic data such as genome size and microsatellite motifs were obtained. The Muraenolepididae family of fishes, known as eel cods, inhabits continental slopes and shelves in the Southern Hemisphere. This family belongs to the Gadiformes order, which constitutes one of the most important commercial fish resources worldwide, but the classification of the fish species in this order is ambiguous because it is only based on the morphological and habitat characteristics of the fishes. Here, the genome of Patagonian moray cod was sequenced using the Illumina HiSeq platform, and screened for microsatellite motifs. The genome was predicted to be 748.97 Mb, with a heterozygosity rate of 0.768%, via K-mer analysis (K = 25). The genome assembly showed that the total size of scaffolds was 711.92 Mb and the N50 scaffold length was 1522 bp. Additionally, 4,447,517 microsatellite motifs were identified from the genome survey assembly, and the most abundant motif type was found to be AC/GT. In summary, these data may facilitate the identification of molecular markers in Patagonian moray cod, which would be a good basis for further whole-genome sequencing with long read sequencing technology and chromosome conformation capture technology, as well as population genetics.
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