A step change in the transfer of interspecific variation into wheat from Amblyopyrum muticum

Summary Despite some notable successes, only a fraction of the genetic variation available in wild relatives has been utilized to produce superior wheat varieties. This is as a direct result of the lack of availability of suitable high‐throughput technologies to detect wheat/wild relative introgress...

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Bibliographic Details
Published in:Plant biotechnology journal 2017-02, Vol.15 (2), p.217-226
Main Authors: King, Julie, Grewal, Surbhi, Yang, Cai‐yun, Hubbart, Stella, Scholefield, Duncan, Ashling, Stephen, Edwards, Keith J., Allen, Alexandra M., Burridge, Amanda, Bloor, Claire, Davassi, Alessandro, Silva, Glacy J., Chalmers, Ken, King, Ian P.
Format: Article
Language:English
Subjects:
Arrays
Chromosome Mapping
Chromosomes
Chromosomes, Plant
Deoxyribonucleic acid
DNA
Gene mutations
Genetic aspects
Genetic diversity
Genetic Linkage
Genetic Variation
Genome, Plant
Genomes
Genomics
Genotype
genotyping
Genotyping Techniques - methods
Goat grass
Hybrids
Infertility
Interspecific
Introgression
Nucleic Acid Hybridization
Poaceae - genetics
Polymorphism, Single Nucleotide
Seeds
Single-nucleotide polymorphism
Synteny
Triticum - genetics
Triticum aestivum
Wheat
wild relatives
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Summary:Summary Despite some notable successes, only a fraction of the genetic variation available in wild relatives has been utilized to produce superior wheat varieties. This is as a direct result of the lack of availability of suitable high‐throughput technologies to detect wheat/wild relative introgressions when they occur. Here, we report on the use of a new SNP array to detect wheat/wild relative introgressions in backcross progenies derived from interspecific hexaploid wheat/Ambylopyrum muticum F1 hybrids. The array enabled the detection and characterization of 218 genomewide wheat/Am. muticum introgressions, that is a significant step change in the generation and detection of introgressions compared to previous work in the field. Furthermore, the frequency of introgressions detected was sufficiently high to enable the construction of seven linkage groups of the Am. muticum genome, thus enabling the syntenic relationship between the wild relative and hexaploid wheat to be determined. The importance of the genetic variation from Am. muticum introduced into wheat for the development of superior varieties is discussed.
ISSN:1467-7644
1467-7652
DOI:10.1111/pbi.12606