Molluscan Research 28(2)

	Molluscan ResearchISSN 1323-5818
	An international journal of the Malacological Society of Australasia published by Magnolia Press

Molluscan Research 28(2): 133-136; published 31 Jul. 2008
Copyright © The Malacological Society of Australasia
Polyploidy in three sphaeriids (Bivalvia: Veneroida) from Korea

G. M. PARK
Department of Parasitology, Kwandong University College of Medicine, Gangneung 210-701, Korea
Email: gmpark@kd.ac.kr

Abstract

In this paper, polyploidy is reported to occur in three species of Korean Sphaeriidae, Musculium cf. lacustre, Sphaerium cf. corneum and Sphaerium sp. The mitotic chromosome numbers of M. cf. lacustre and S. cf. corneum are both 190, and Sphaerium sp. has a mitotic chromosome number of 171. The basic chromosome number of these Sphaeriidae is probably x=19. Because of the large number of chromosomes present it is difficult to determine ploidy, but M. cf. lacustre and S. cf. corneum may be decaploid and Sphaerium sp. may be nonaploid.

Key words: Musculium cf. lacustre, Sphaerium cf. corneum, Sphaerium sp.

Full article (PDF; 390 KB)

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Published : 31 Jul. 2008