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GrainGenes Reference Report: PSE-202-199

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Reference	PSE-202-199
Title	Standard karyotypes of Aegilops uniaristata, Ae. mutica, Ae. comosa subspecies comosa and heldreichii (Poaceae)
Journal	Plant Systematics and Evolution
Year	1996
Volume	202
Pages	199-210
Author	Friebe B Badaeva ED Kammer K Gill BS
Abstract	C-banding patterns and polymorphisms were analyzed in several accessions of diploid Aegilops species, Ae. uniaristata, Ae. mutica, and Ae. comosa subsp. comosa and subsp. heldreichii, and standard karyotypes of these species were established. Variation in C-band size and location was observed between different accessions, but did not prevent chromosome identification. One accession of Ae. uniaristata was homozygous for whole arm translocations involving chromosomes 1N and 5N. The homoeologous relationships of these chromosomes were established by comparison of chromosome morphologies and C-banding patterns to other diploid Aegilops species with known chromosome homoeology. In addition, in situ hybridization analysis with a 5S rDNA probe was used to identify homoeologous groups 1 and 5 chromosomes. The present analysis permitted the assignment of all Ae. mutica, comosa subsp. comosa, and Ae. comosa subsp. heldreichii chromosomes, and three of the seven Ae. uniaristata chromosomes according to their homoeologous groups. The data presented will be useful in analyzing genome differentiation in polyploid Aegilops species.
Keyword	Ae. comosa subsp. comosa [ Show all 7 ]
Image	C-bands of Ae. comosa - 1 [ Show all 6 ]

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