ISSN:
1432-2242
Keywords:
Key words Triticum aestivum
;
Aegilops speltoides
;
Chromosome addition
;
C-banding
;
In situ hybridization
;
RFLP
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Aegilops speltoides Tausch (2n = 2x = 14, SS) is considered as the closest living relative of the B and G genomes of polyploid wheats. A complete set of Triticum aestivum L. cv Chinese Spring-Ae. speltoides whole chromosomes and seven telosomic addition lines was established. A low pairing accession was selected for the isolation of the chromosome addition lines. Except for chromosomes 3S and 6S, which are presently only available as monosomic additions, all other lines were recovered as disomic or ditelosomic additions. The individual Ae. speltoides chromosomes isolated in the wheat background were assayed for their genetic effects on plant phenotype and cytologically characterized in terms of chromosome length, arm ratio, distribution of marker C-bands, and FISH sites using a Ae. speltoides-specific repetitive element, Gc1R-1, as a probe. The homoeology of the added Ae. speltoides chromosomes was established by using a standard set of RFLP probes. No chromosomal rearrangements relative to wheat were detected.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001220051448
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