Meiosis of two species of Cacopsylla with polymorphic sex chromosomes in males (Homoptera, Psylloidae)

• Authors: S. Grozeva , A. Maryanska-Nadachowska
• Languages of publication: EN

Abstracts

EN

The karyotype in two species of Cacopsylla (Homoptera, Psyllidae) from populations was investigated.The males were found to be dimorphic with respect to their sex chromosome constitution and the automosome number.Type A (XO) was described for C sorbi.Type B (XY) was described for C mali and Type C (X1X2Y)for two species in the present work.In Type B and Type C reduction of the autosome number was found.The bahaviour of sex chromosome during meiosis was studied.The scheme was proposed indicationg how the XO type, through X-autosome fusion, gave rise to the neo X1X2Y type.

Keywords

EN

HOMOPTERA; KARYOTYPE; PSYLLIDAE; SEX CHROMOSOME POLYMORPHISM

Discipline

• EXPERIMENTAL_BIOLOGY_&_MEDICINE: EXPERIMENTAL BIOLOGY & MEDICINE

• Publisher: Institute of Systematics and Evolution of Animals, Polish Academy of Sciences
• Journal: Folia Biologica
• Year: 1995
• Volume: 43
• Issue: 3-4
• Pages: 93-98

Contributors

author

S. Grozeva

author

A. Maryanska-Nadachowska

• Document Type: article
• Publication order reference: S.Grozeva