• The Korean Journal of Malacology
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• v.24 no.2
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• pp.93-96
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• 2008

The Korean freshwater Sphaeriid clam species, Pisidium(Neopisidium) coreanum is re-described and illustrated, based on the type locality specimens. Authors considers that original description of this species is by Kwon, Pisidium(Neopisidium) sp. in 1990.

• The Korean Journal of Malacology
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• v.9 no.1
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• pp.33-38
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• 1993

강원도 춘천군, 명주군, 평창군에서 채집한 산골조개(pisidium (Neopisidium) coreanum)의 발생형태 및 산란시기에 대한 조직학적 결과는 다음과 같다. 산골조개는 난태생이고 아가미를 보육장으로 이용하여 발생을 하였다. 유패는 한 개체의 성패내에서 최고 19마리까지의 유패를 보유하였으며 방출 즉시 독깁 생활을 하였지만 수관의 구별은 어려웠다. 산란은 일년내내 할 수 있으며 생식소내에서 난소와 정소의 배우자 발생 시기가 다른 것으로 보아 자가수정을 하지 않는것으로 관찰되었다.

• The Korean Journal of Malacology
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• v.25 no.2
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• pp.153-160
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• 2009

Pisidium (Neopisidium) coreanum is a freshwater snail and lives in spring water near mountain areas. Interestingly, this snail has been traditionally regarded as medicinal food, and thus has been used as folk remedies for healing broken bones. Recently, alpha classification on Pisidium (Neopisidium) coreanum through redescription has been conducted. However, not much attention has been made in beta classification. In this study, we performed the beta classification based on metallothionein (MT) genes found from various organisms. To this end, the complete cDNA sequences were obtained from the Expressed Sequence Tag (EST) sequencing project of Pisidium (Neopisidium) coreanum. The coding region (315 bp) encoded an amino acid sequence of 105 residues. The combined results from BLAST analyses, multiple sequence alignment and molecular phylogenetic study of Pc-MT gene indicate that Pisidium (Neopisidium) coreanum has similarity to freshwater bivalve such as Dreissena polymorpha (zebra mussel), Unio tumidus (swollen river mussel) and Crassostrea ariakensis (suminoe oyster).

• The Korean Journal of Malacology
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• v.26 no.4
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• pp.317-326
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• 2010

The availability of fast and inexpensive sequencing technology has enabled researchers around the world to conduct many genome sequencing and expressed sequence tag (EST) projects of diverse organisms. In recent years, whole genome projects have been undertaken to sequence ten species from the phylum Mollusca. These include Aplysia californica, Lottia gigantea, Crassostrea virginica, Spisula solidissima, Mytilus californianus, Biomphalaria glabrata, Crepidula fornicata, Elysia chlorotica, Lottia scutum and Radix balthica. Additionally, complete mitochondrial genomes of 91 mollusks have been reported. In Korea, EST projects have been conducted in nine mollusk species that include Nesiohelix samarangae, Pisidium (Neopisidium) coreanum, Physa acuta, Incilaria fruhstorferi, Meretrix lusoria, Ruditapes philippinarum, Nordotis gigantea, Crassostrea gigas and Laternula elliptica. Finally, the mitochondrial genome projects from the Pacific Oyster (Crassostrea gigas) and the rock shell (Thais clavigera) have been conducted and reported. However, no systemic mollusk genome project has so far been conducted in Korea. In this report, the current status and research trends in mollusk genome study in Korea will be discussed.