The effect of increased dosage of wheat chromosomes on chromosome pairing and an analysis of the chiasma frequencies of individual wheat bivalents

Publisher Website
Google Scholar
Abstract
By crossing the ''Chinese Spring'' [Triticum aestivum] wheat tetrasomic series with rye [Secale cereale cv. Petkus Spring], 21 different hybrid genotypes were produced, each with a single different homologous pair of wheat chromosomes. These hybrids enable the effect on chromosome pairing to be assessed for an extra dose of each of the 21 chromosomes. Significant effects were observed with eight of the chromosomes. Chiasma frequencies for each of the 21 pairs of chromosomes were also studied and the differences between the chromosomes were reported. The correlation between chromosome pairing and chiasma formation and chiasma frequency differences between bivalents and genomes are discussed.

This publication has 2 references indexed in Scilit: