2017
DOI: 10.1093/aob/mcx149
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Abstract: Background and AimsBread wheat (Triticum aestivum) has been through a severe genetic bottleneck as a result of its evolution and domestication. It is therefore essential that new sources of genetic variation are generated and utilized. This study aimed to generate genome-wide introgressed segments from Aegilops speltoides. Introgressions generated from this research will be made available for phenotypic analysis.Methods Aegilops speltoides was crossed as the male parent to T. aestivum ‘Paragon’. The interspeci… Show more

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Cited by 37 publications
(45 citation statements)
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References 54 publications
(81 reference statements)
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“…muticum, 21% with T. urartu and 29% with Ae. speltoides (Grewal et al 2018a, b;King et al 2017King et al , 2018. In our hands, the low fertility of F 1 hybrids, although they frequently result in the generation of high numbers of introgressions, remains the rate limiting step with many of the wild relatives of wheat.…”
Section: Discussionmentioning
confidence: 77%
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“…muticum, 21% with T. urartu and 29% with Ae. speltoides (Grewal et al 2018a, b;King et al 2017King et al , 2018. In our hands, the low fertility of F 1 hybrids, although they frequently result in the generation of high numbers of introgressions, remains the rate limiting step with many of the wild relatives of wheat.…”
Section: Discussionmentioning
confidence: 77%
“…In contrast, F 1 hybrids between wheat and Am muticum (King et al 2017), Ae. speltoides (King et al 2018), Th. bessarabicum (Grewal et al 2018a), T. urartu (Grewal et al 2018b) and T. timopheevii (Devi et al 2019) all show complete male sterility.…”
Section: Discussionmentioning
confidence: 99%
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“…Introgression of genetic material from relative species into bread wheat has been used in plant breeding for over 50 years, although classical plant breeding methods to introgress wild relative segments into wheat are both inefficient and time consuming (Ko et al, 2002). Recent availability of SNP based arrays, combined with classical cytogenetic approaches, significantly enhanced our ability to exploit wild relatives (King et al, 2017a, 2017b), using lines carrying a deletion of either the whole of chromosome 5B, or a smaller 70Mb segment ( ph1b ) (Riley and Chapman, 1958; Sears and Okamoto, 1958: Sears, 1977), to increase the level of homoeologous crossovers between wild relatives and wheat chromosomes. Recombination between wild relative chromosomes and wheat chromosomes is, however, still limited.…”
Section: Discussionmentioning
confidence: 99%
“…Thus Ae. caudata provides an important source of genetic variation for agronomically important traits that can be transferred into wheat as has been previously done for other Aegilops species (King et al, 2018; King et al, 2017).…”
Section: Introductionmentioning
confidence: 99%