Determination of optimal mutagen dosage and its effects on morpho-agronomic traits in putative mutants of ‘Amasya’ apple

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dc.contributor.authorAtay, A. Nilgün
dc.contributor.authorAtay, Ersin
dc.contributor.authorKunter, Burak
dc.contributor.authorKantoğlu, K. Yaprak
dc.contributor.authorKaplan, Nejdet
dc.contributor.authorID0000-0002-7557-360Xtr_TR
dc.contributor.departmentTAEK-SANAEMtr_TR
dc.date.accessioned2019-09-05T07:31:10Z
dc.date.available2019-09-05T07:31:10Z
dc.date.issued2019-08
dc.description.abstractMutation breeding is one of the efficient ways to create new genotypes. The starting material of this study was the ‘Amasya’, a Turkish apple cultivar. This study aimed to identify optimal mutagen dosage that is the most important prerequisite to create a proper mutant population, and evaluate the genetic variability for morpho-agronomic traits (e.g. tree height and fruit number) in the putative apple mutants of ‘Amasya’ irradiated at the optimal mutagen dosage. In the first year of the study, to determine the optimal mutagen dosage, dormant ‘Amasya’ scion woods were irradiated at 0, 10, 20, 30, 40, 50 and 60 gray dosages using 60Co source. The optimal mutagen dosage was determined as 29.01 gray for ‘Amasya’ concerning the 50% shoot length reduction in comparison to the non-irradiated control plants. In the following year, more or less 2000 dormant ‘Amasya’ scion woods were irradiated at the optimal mutagen dosage to generate a mutant population of ‘Amasya’ apple cultivar. Mutation frequency based on the visual observations of plant abnormalities was observed. Then three years, genetic uniformity was analyzed through the growth of the mutant population, and mutation frequency (%) determined. These results indicated that there was considerable genetic variability in response to irradiation for evaluated traits. Most of the plants in the putative mutant population, nearly 80%, had a significantly shorter tree height and trunk cross-sectional area than standard ‘Amasya’. The mutants/genotypes identified in this study could be used improvement of new promising apple cultivars with good agronomical traits.tr_TR
dc.description.sponsorshipTAEK, TAGEMtr_TR
dc.identifier.citationAtay, A. N. ... [ve arkadaşları]. (2019). Determination of optimal mutagen dosage and its effects on morpho-agronomic traits in putative mutants of ‘Amasya’ apple. Genetika Belgrade, 51(2), 629-639.tr_TR
dc.identifier.endpage639tr_TR
dc.identifier.issn1820-6069tr_TR
dc.identifier.issue2tr_TR
dc.identifier.startpage629tr_TR
dc.identifier.urihttp://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/1590
dc.identifier.volume51tr_TR
dc.language.isoengtr_TR
dc.publisherSerbian Genetics Societytr_TR
dc.relation.isversionof10.2298/GENSR1902629Atr_TR
dc.relation.journalGenetika Belgradetr_TR
dc.rightsinfo:eu-repo/semantics/openAccesstr_TR
dc.subjectFruit breedingtr_TR
dc.subjectMeyve ıslahıtr_TR
dc.subjectMutation breedingtr_TR
dc.subjectMutasyon ıslahıtr_TR
dc.subjectGamma irradiationtr_TR
dc.subjectGama ışınlamasıtr_TR
dc.subjectMalus sylvestristr_TR
dc.subjectMalus domesticatr_TR
dc.titleDetermination of optimal mutagen dosage and its effects on morpho-agronomic traits in putative mutants of ‘Amasya’ appletr_TR
dc.title.alternativeOdređivanje optimalnog mutagenog doziranja i njegovih efekata na morpho-agronomske osobine kod potencijalnih mutanata “Amasia” jabuketr_TR
dc.typearticletr_TR
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