The Karyotype Of Blainville'S Beaked Whale, Mesoplodon Densirostris
CYTOGENETIC AND GENOME RESEARCH(2021)
Abstract
The karyotype of the Odontocete whale, Mesoplodon densirostris, has not been previously reported. The chromosome number is determined to be 2n = 42, and the karyotype is presented using G-, C-, and nucleolar organizer region (NOR) banding. The findings include NOR regions on 2 chromosomes, regions of heterochromatic variation, a large block of heterochromatin on the X chromosome, and a relatively large Y chromosome. The karyotype is compared to published karyograms of 2 other species of Mesoplodon.
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Key words
Blainville, Beaked whale, Cetacea, Chromosome, G-band
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