Heterochromatin in the genus Artemia
Barigozzi, C.; Badaracco, G.; Plevani, P.; Baratelli, L.; Profeta, S.; Ginelli, E.; Meneveri, R. (1984). Heterochromatin in the genus Artemia. Chromosoma (Berl., Print) 90(5): 332-337. https://dx.doi.org/10.1007/BF00294159
In: Chromosoma. Springer-Verlag: Berlin; Heidelberg. ISSN 0009-5915; e-ISSN 1432-0886, more
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| Authors | | Top |
- Barigozzi, C.
- Badaracco, G.
- Plevani, P.
- Baratelli, L.
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- Profeta, S.
- Ginelli, E.
- Meneveri, R.
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| 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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