Diplotene chromosomes of Xenopus hybrid oocytes
- 2 January 1977
- journal article
- research article
- Published by Springer Nature in Chromosoma
- Vol. 59 (4) , 273-282
- https://doi.org/10.1007/bf00327969
Abstract
Observations on meiotic diplotene chromosomes from oocytes of Xenopus species and subspecies hybrids are reported. Species interrelationships are established on the basis of the number of bivalents in the respective hybrids. Polyploid oocytes were found and their origin by supplementary endoreduplication placed at the differentiation stage of gametogenesis when oogonia become oocytes. The significance of polyploid oocytes for speciation is discussed.Keywords
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