AbstractsBiology & Animal Science

The interlocking of non-homologous bivalents in Trillium erectum L.

by Eric Roger. Boothroyd




Institution: McGill University
Department: Deparment of Genetics.
Degree: MS.
Year: 1940
Keywords: Trillium erectum  – Cytology.
Record ID: 1577085
Full text PDF: http://digitool.library.mcgill.ca/thesisfile129808.pdf


Abstract

In the course of the cytological studies of cereals conducted in this department it was noticed, in a number of cells, that two or more bivalents were interlocked with each other at meiotic metaphase. The percentage of cells containing such interlocked bivalents is unusually high in the speltoid mutants of wheat (Triticum vulgare Host), unbalanced types having 40 or 42 chromosomes with a homozygous deficiency instead of the usual 42, and resembling Triticum Spelta more than T. vulgare. [...]