Publication Date
3-18-1969
Series Number
130
Abstract
Among 25 deep-sea fish species karyologically investigated, digamety is confirmed in 12. Observations were based on the consistent appearance of heteromorphic chromosome pairs, of asymmetrical and atypically behaving "sex" bivalents, and of two different chromosome counts from metaphase II. The occurrence of such digamety in other lower vertebrates is discussed. It occurs more frequently among teleostean fishes and other lower vertebrates than previously expected.
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