Vervoort A. Karyotypes and nuclear DNA contents of Polypteridae (Osteichthyes).
EXPERIENTIA 1980;
36:646-7. [PMID:
7418822 DOI:
10.1007/bf01970113]
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Abstract
Calamoichthys calabaricus, Polypterus palmas, P. weeksii, P. delhezi and P. ornatipinnis have the same amount of DNA per erythrocyte nucleus. The karyotype of P. weeksii has 38 chromosomes and differs from the karyotypes of the other species, all with 36 chromosomes, by a Robertsonian chromosomal rearrangement. The karyotype condition is regarded as derived for vertebrates.
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