Genetic analysis of some flowering time and adaptive traits in wheat

Autor:	C. N. Law, A. J. Worland
Rok vydání:	1997
Předmět:	Genetics biology Physiology fungi food and beverages Chromosome Plant Science biology.organism_classification Genetic analysis Gene mapping Arabidopsis Mutation (genetic algorithm) Poaceae Adaptation Gene
Zdroj:	New Phytologist. 137:19-28
ISSN:	1469-8137 0028-646X
DOI:	10.1046/j.1469-8137.1997.00814.x
Popis:	The present understanding of the genetic control of flowering in wheat is reviewed. Although this information will continue to be of value in breeding and in recognizing the role such genes have had in adapting the wheat crop to global agriculture, its use in defining the processes responsible for flowering will be limited. Progress here will depend on developments in model plant systems such as Arabidopsis, where methods for isolating genes are much more advanced than in wheat. These developments, which have already started, will probably be used to establish homologies between the genes for flowering within the cereals, as well as more widely. An understanding of the flowering process in wheat is likely to emerge from this approach. In the meantime, there are some unknowns in the genetics of flowering in wheat which need to be resolved. These include the identification of a gene(s) on the group 4 chromosomes of wheat which is homoeoallelic with the gene Sh in barley. Also, the proposed gene(s) delaying flowering and located on the group 6 chromosomes needs to be recognized and mapped. Similar needs occur for the group 1 chromosomes as well as the resolution of whether or not Vrn5 is correctly positioned on chromosome 7BS.
Databáze:	OpenAIRE
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