Identification of high-yielding wheat genotypes resistant to Pyrenophora tritici-repentis (tan spot)

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dc.authoridKokhmetova, Alma/0000-0002-0186-7832
dc.authoridKumarbayeva, Madina/0000-0002-5588-6772
dc.authoridRiley, Ian Timothy/0000-0002-3592-0785
dc.contributor.authorKokhmetova, Alma
dc.contributor.authorKumarbayeva, Madina
dc.contributor.authorAtishova, Makpal
dc.contributor.authorNehe, Ajit
dc.contributor.authorRiley, Ian T.
dc.contributor.authorMorgounov, Alexey
dc.date.accessioned2024-11-07T13:35:03Z
dc.date.available2024-11-07T13:35:03Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractTan spot, caused by Pyrenophora tritici-repentis, is a major foliar disease of wheat in Kazakhstan. This study evaluated 103 winter wheat genotypes for tan spot resistance and high-productivity traits in the field in two years. Entries were also characterized using the molecular marker Xfcp623, indicative of Tsn1 gene conferring sensitivity to Ptr ToxA. The proportion of entries insensitive to Ptr ToxA was relatively high (71%). Forty-eight entries with the lowest tan spot severity in the field were confirmed to be insensitivity to Ptr ToxA in the molecular screening. Entries which were resistant under field conditions had similar level of seedling resistance. Principal component analysis biplots showed, that all spike productivity traits were highly correlated. Days to heading (DH) and tan spot severity, as well as the normalized difference vegetation index and DH were strongly correlated. Thousand kernels weight (TKW) and plant height were highly correlated and both were negatively correlated with DH and tan spot severity, indicating that taller cultivars tended to be more resistant. The Xfcp623 negative entries had lower disease severity (by about 40%), flowered up to 2 days later than entries with Tsn1 and had significantly more spikelets per spike, number of grains per spike, TKW and grain weight/spike. The results of the study will be important for increasing the efficiency of breeding based on the elimination of the genotypes with dominant allele Tsn1. Of the 103 entries evaluated, 28 can be directly used in breeding programs to improve tan spot resistance and productivity of winter wheat.
dc.description.sponsorshipKazakhstan Ministry of Education and Sciences
dc.description.sponsorshipThis study was supported by the Kazakhstan Ministry of Education and Sciences, program entitled, Development and implementation of highly effective biotechnological diagnostic systems for identifying the most dangerous diseases and increasing the genotypic potential of crop resistance in the Republic of Kazakhstan.
dc.identifier.doi10.1007/s10681-021-02822-y
dc.identifier.issn0014-2336
dc.identifier.issn1573-5060
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85105172841
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s10681-021-02822-y
dc.identifier.urihttps://hdl.handle.net/11480/16305
dc.identifier.volume217
dc.identifier.wosWOS:000646556800004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofEuphytica
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectMolecular markers
dc.subjectPrincipal component analysis biplots
dc.subjectProductivity traits
dc.subjectTan spot
dc.subjectWheat
dc.titleIdentification of high-yielding wheat genotypes resistant to Pyrenophora tritici-repentis (tan spot)
dc.typeArticle

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