Genetic Evidence for Natural Hybridization Between Red Snow Crab (<i>Chionoecetes japonicus</i>) and Snow Crab (<i>Chionoecetes opilio</i>) in Korea

Kim, Woo Jin; Jung, Hyungtaek; Chun, Young Yull; Kang, Sungwon; Shin, Eun-Ha; Kim, Young‐Ok; Nam, Bo‐Hye; Kong, Hee Jeong; Kee, Hyung

doi:10.2983/035.031.0106

Cited by 15 publications

(12 citation statements)

References 8 publications

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“…Although the number of crabs being classed as SH 3 and SH 4 were very low, their obvious morphological differences (Table 1) compared to others, i.e., S. olivacea, S. serrata, S. tranquebarica, S. paramamosain, SH 1 and SH 2, warrant them to be categorized into separate groups. The occurrence of hybrids, especially in crustaceans is not as common (Kim et al, 2012) as it is in other marine organisms such as fish (Bartley, Rena & Immink, 2000;Ende et al, 2018), and the report of one specimen of natural Scylla hybrid by Imai & Takeda (2005) in Japan further supports this postulate. However, it is important that the maternal and paternal inheritance of all four groups of SHs, including SH 3 and SH 4, should be tested using molecular methods to verify their hybrid status.…”

Section: Morphological and Morphometric Characterization Of Scyllamentioning

confidence: 90%

“…Natural hybridization is less commonly reported in crustaceans, especially those in the infraorder Brachyura. Among the reported naturally hybridized species includes between red snow crab (Chionoecetes japonicus) and snow crab (C. opilio) in Korea (Kim et al, 2012) and between Intertidal stone crabs, Menippe mercenaria and M. adina in the Mexico Gulf (Wilber, 1989). Both snow crabs and intertidal stone crabs exhibited overlapping range, thus promoting the formation of natural hybrids (Wilber, 1989;Kim et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Morphological descriptions and morphometric discriminant function analysis reveal an additional four groups of Scylla spp

Fazhan

Waiho

Quinitio

et al. 2020

PeerJ

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There are four species of mud crabs within the genus Scylla, and most of them live sympatrically in the equatorial region. Apart from a report in Japan about the finding of a natural Scylla hybrid more than a decade ago after the division of genus Scylla into four species by Keenan, Davie & Mann (1998), no subsequent sighting was found. Thus, this study investigates the possible natural occurrence of potential hybridization among Scylla species in the wild. A total of 76,211 individuals from mud crab landing sites around the Malacca Straits, South China Sea and Sulu Sea were screened. In addition to the four-purebred species, four groups (SH 1, n = 2, 627; SH 2, n = 136; SH 3, n = 1; SH 4, n = 2) with intermediate characteristics were found, mostly at Sulu Sea. Discriminant Function Analysis revealed that all Scylla species, including SH 1 - 4, are distinguishable via their morphometric ratios. The most powerful discriminant ratios for each character and the top five discriminant ratios of males and females were suggested. The carapace width of SH 1 males and females were significantly smaller than pure species. Based on the discriminant ratios and the description of morphological characters, we hypothesize that the additional four groups of Scylla with intermediate characteristics could be presumed hybrids. Future work at the molecular level is urgently needed to validate this postulate.

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Section: Morphological and Morphometric Characterization Of Scyllamentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Morphological descriptions and morphometric discriminant function analysis reveal an additional four groups of Scylla spp

Fazhan

Waiho

Quinitio

et al. 2020

PeerJ

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“…Samples were stored in a cooler during transfer from Jukbyeon Harbor to the laboratory where they were then stored at 4°C until processed. The morphological characteristics of snow crabs can be distinguished by their carapace color, the arrangement of granules on the lateral carapace, and the presence or absence of spines on the lateral carapace [4]. The crabs were originally caught in the East Sea of Korea [5], [6].…”

Section: Methodsmentioning

confidence: 99%

“…Three kinds of Chionoecetes are prominent on the east coast of Korea, including snow crab ( Chionoecetes opilio ), red-tanner crab ( Chionoecetes japonicus ), and the hybrid Neodo-Daege ( Chionoecetes sp.) [2]. Chionoecetes fishing is a major industry and source of income in the area [3]–[6].…”

Section: Introductionmentioning

confidence: 99%

Antibiotic Resistance of Bacteria Isolated from the Internal Organs of Edible Snow Crabs

et al. 2013

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Antibiotic resistance and microbiota within edible snow crabs are important for the Chionoecetes (snow crab) fishing industry. We investigated these parameters using culture methods and antibiotic susceptibility tests with six internal organs from three species of Chionoecetes. Each sample revealed many unexpected microbial species within Chionoecetes internal organs. On the basis of 16S rRNA sequence analysis of 381 isolates, the most abundant genera identified in Chionoecetes opilio were Acinetobacter spp. (24%), Bacillus spp. (4%), Pseudomonas spp. (34%), Stenotrophomonas spp. (28%), and Agreia spp. (11%). In Chionoecetes sp. crabs, Acinetobacter spp. (23%), Bacillus spp. (12%), and Psychrobacter spp. (20%) were most prevalent, while Agreia spp. (11%), Bacillus spp. (31%), Microbacterium spp. (10%), Rhodococcus spp. (12%), and Agrococcus spp. (6%) were most abundant in C. japonicus. Our antibiotic resistance test found resistance to all nine antibiotics tested in 19, 14, and two of the isolates from C. opilio, Chionoecetes sp., and, C. japonicus respectively. Our results are the first to show that microbes with antibiotic resistance are widely distributed throughout the internal organs of natural snow crabs.

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“…In crabs, a high amount of selenium has been reported, which act as vital role in the human’s antioxidant defense system. At the same time, crab meat has low fat and contains quantifiable amounts of Omega-3 polyunsaturated acids, which provides protection from heart disease and aids brain development (Kim et al, 2012, Chun et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic affiliation and determination of bioactive compounds of bacterial population associated with organs of mud crab, Scylla olivacea

Zote

Passari

Zothanpuia

et al. 2018

Saudi Journal of Biological Sciences

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Mud crab belongs to the genus Scylla is an economically valuable and preferred species for costal aquaculture in Asian countries, including India. In recent years, there has been a tremendous expansion of Scylla farming, which has led to increasing research on its habit and habitats. However, there has been no study undertaken to understand the role of the bacterial population associated with the different organs of the mud crab, Scylla olivacea. In total, 43 isolates were recovered from four selected parts of the crab (carapace, n = 18; abdomen n = 11; leg, n = 8; and hand, n = 6), and the 16S rRNA gene was used to identify the bacterial isolates. The antimicrobial potential along with the detection of modular polyketide synthase (PKSI), cytochrome P450 hydroxylase (CYP) and non-ribosomal peptide synthetase (NRPS) gene clusters were investigated to show a relationship among the biosynthetic genes with their useful aspects. Additionally, the potential three strains (BPS_CRB12, BPS_CRB14 and BPS_CRB41), which showed significant antimicrobial activities, also showed the presence of twenty volatile compounds (VOCs) using GC–MS analysis. We conclude that the strain Aneurinibacillus aneurinilyticus BPS_CRB41 could be source for the production of bioactive compounds.

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Genetic Evidence for Natural Hybridization Between Red Snow Crab (Chionoecetes japonicus) and Snow Crab (Chionoecetes opilio) in Korea

Cited by 15 publications

References 8 publications

Morphological descriptions and morphometric discriminant function analysis reveal an additional four groups of Scylla spp

Morphological descriptions and morphometric discriminant function analysis reveal an additional four groups of Scylla spp

Antibiotic Resistance of Bacteria Isolated from the Internal Organs of Edible Snow Crabs

Phylogenetic affiliation and determination of bioactive compounds of bacterial population associated with organs of mud crab, Scylla olivacea

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