Abstract
Meiosis was studied in four 8-chromosome haploid plants produced from Wiebe's barley (2n = 14 + 2 centric fragments) (Hordeum vulgare L.) in which the extra chromosome had lost its telomeres and was one-third the length of a normal chromosome. Although secondary associations occurred, pairing between the normal and fragmented chromosome was rare despite the presence of homologous segments between them, indicating that the deletion of the telomeres restricted chromosome synapsis. A high bivalent frequency was attributed to a translocation between a long and short chromosome of the normal complement that persisted through the haploidization process.
Publisher
Canadian Science Publishing
Subject
Cell Biology,Plant Science,Genetics
Cited by
2 articles.
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