Details

Autor(en) / Beteiligte

• Giraldez, R
• Santos, J.L

Titel

Cytological evidence for preferences of identical over homologous but not-identical meiotic pairing

Ist Teil von

• Chromosoma, 1981-01, Vol.82 (3), p.447-451

Ort / Verlag

Austria

Erscheinungsjahr

1981

Quelle

SpringerLINK Contemporary (Konsortium Baden-Württemberg)

Beschreibungen/Notizen

• A spontaneous tetraploid/diploid chimera involving meiotic cells of a male individual of Euchorthippus pulvinatus gallicus was heterozygous for the C-banding pattern in chromosome pair 8. This allowed the study of the possible existence of competition in meiotic pairing between identical and homologous but not-identical chromosomes. The results suggest the existence of such a competition. An excess of bivalents formed by identical chromosomes was observed. It is suggested that during the pairing process slight specificity or activity differences between chromosomes with a high degree of resemblance would be responsible for the pairing preferences found.