Abstract
Chromosome counts (2n=36) and karyotypes of Sabal yapa, S. mexicana and S. gretheriae are reported. The karyotypes of S. yapa and S. mexicana were closely similar. They presented metacentrics and submetacentrics as well as four pairs of chromosomes with satellites. S. gretheriae showed nine pairs of chromosomes with such satellites and pair of a heteromorphic chromosomes. They were almost 3 times bigger than the average of the other chromosomes in its complement. The high number of satellites as well as the presence of a heteromorphic pair could be related to the speciation process of S. gretheriae.
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