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GrainGenes Reference Report: CGR-106-314

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Reference	CGR-106-314
Title	B chromosomes in hybrids of temperate cereals and grasses
Journal	Cytogenetic and Genome Research
Year	2004
Volume	106
Pages	314-319
Author	Jenkins G Jones RN
Abstract	B chromosomes are considered to be genetically inert, yet often have pronounced and surprising effects upon the A chromosome behaviour at meiosis in inter-generic and inter-specific hybrids. We review here our current knowledge of these effects in a number of different hybrids of the temperate cereals and grasses. Through hybridization, many effects comparable to the pairing control system of wheat are uncovered, together with complex interactions of B chromosomes with hybrid host genotypes. We discuss the genetic and physical basis of the effects and try to make sense of them in terms of what we know about the origin and evolution of B chromosomes in plants
External Databases	Pubmed: 15292609
Keyword	[ Hide all but 1 of 10 ] accessory chromosomes chromosome cultivar evolution genotype hybrid hybridization meiosis origin review

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