Abstract
A bisexual species of the genus Artemia (Crustacea, Phyllopoda), Artemia franciscana Barigozzi of San Francisco Bay and a parthenogenetic population of Artemia sp. of Tsing-Tao (China), both with 42 chromosomes, were compared with respect to the microscopic structure of the interphase larval nucleus, the microscopical structure of the prophase chromosomes and the DNA structure. — Artemia franciscana exhibits several chromocenters in the resting nucleus, heterochromatic blocks located at the end of the prophase chromosomes, and a large amount of repetitive DNA (Alu I 110-bp fragments). The other Artemia sp. lacks chromocenters, heterochromatic blocks in the chromosomes, and the Alu I DNA. The two populations thus differ by a remarkable amount of repetitive DNA.
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The authors dedicate this paper to Professor Hans Bauer, on the occasion of his 80th birthday
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Barigozzi, C., Badaracco, G., Plevani, P. et al. Heterochromatin in the genus Artemia . Chromosoma 90, 332–337 (1984). https://doi.org/10.1007/BF00294159
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DOI: https://doi.org/10.1007/BF00294159