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Meiotic Pairing of the Amphiploid Hordeum Chilense X Triticum Turgidum Conv. Durum Studied by Means of Giemsa C-banding Technique

Overview
Journal Theor Appl Genet
Publisher Springer
Specialty Genetics
Date 2013 Nov 21
PMID 24254119
Authors
J A Fernandez
J M Gonzalez
N Jouve
Affiliations
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Abstract

The meiotic behaviour of the amphiploid Hordeum chilense X Triticum turgidum conv. durum using a C-banding staining method is studied. Nine pairs of chromosomes at metaphase-1 (4A, 7A and the seven of the B genome) were identified and the remaining wheat chromosomes (1A, 2A, 3A, 5A and 6A) and seven of the chilense (1 to 7 H (ch) chromosomes) were assigned to its particular genome. A similar mean number of univalents from parental genomes (wheat and wild barley) were found. No meiotic pairing between chilense and turgidum chromosomes was detected. Differences in the meiotic behaviour per chromosome and amongst genomes are explained on the basis of cytomorphological and heterochromatin characteristics.

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