Cytogenetic Studies in Avena, XIII. The relationship of synaptic factors between tetraploid and hexaploid species
- 1 January 1964
- journal article
- research article
- Published by Genetics Society of Japan in The Japanese Journal of Genetics
- Vol. 38 (5-6), 356-359
- https://doi.org/10.1266/jjg.38.356
Abstract
Comparative observations were made on 2 kinds of F1 plants obtained by the cross between the wild tetraploid species Avena barbata and the monosomic-c of A. sativa, i.e., on the pentaploid (chromosome nos.= 35) with 1 c-chromosome (AABB''C) vs. the monosomic pentaploid without c-chromosome (chromosome nos.=34) (AAB''BC-c). The 34-chromosome plants were shorter in height and showed the wild grain character, as a result of being devoid of c-chromosome. In regards to chromosome pairing, no significant differences were found between the 2 types in the average number of pairs or of chiasmata per cell at metaphase I. It was demonstrated that the meiotic pairing between the homologous chromosomes from the 2 species can occur in the absence of the synaptic factor of A. sativa, as the chromosomes are probably paired in the presence of the synaptic factor (s) of A. barbata.This publication has 1 reference indexed in Scilit:
- The Genetics and Cytology of Certain CerealsThe Japanese Journal of Genetics, 1929