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The classification of the chromosomes of rye (Secale cerealeL.): A translocation tester set

✍ Scribed by J. Sybenga; A. H. G. Wolters

Publisher: Springer Netherlands
Year: 1972
Tongue: English
Weight: 599 KB
Volume: 43
Category: Article
ISSN: 0016-6707
DOI: 10.1007/bf00156140

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✦ Synopsis

The difficulties encountered in classifying the seven chromosomes of rye (Secale cereale L.) are discussed.

Unequivocal classification is possible only with a standard testing system such as a translocation tester set. In the present paper a set is described which contains seven reciprocal translocations.

Each chromosome participates at least once. The translocated chromosomes can be visually recognized.

The size of the chromosome arms was measured and is expressed as o/O of the total complement length. Which chromosomes were involved in the translocations was studied by using a special graphic method based on the arm ratios of the mitotic chromosomes, and also by intercrossing followed by an analysis of the meiotic configurations in the Fl's.

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