TY - JOUR T1 - Kışlık Buğdaylarda Kök ve Kökboğazı Çürüklüğüne Sebep Olan Fusarium spp. İzolatları Arasındaki Genetik Varyasyonun Retrotranzpozon Temelli iPBS Markörleri ile İncelenmesi TT - Genetic Variation of Fusarium spp. Isolates Associated with Root and Crown Rot of Winter Wheat Using Retrotransposon-Based iPBS Assays AU - Özer, Göksel AU - Alkan, Mehtap AU - Göre, Mehmet Erhan AU - Bayraktar, Harun PY - 2019 DA - December Y2 - 2019 DO - 10.24180/ijaws.537423 JF - Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi PB - Bolu Abant İzzet Baysal Üniversitesi WT - DergiPark SN - 2149-8245 SP - 250 EP - 259 VL - 5 IS - 2 LA - tr AB - Bu çalışmada,kışlık buğdaylarda kök ve kökboğazı çürüklüğüne sebep olan farklı Fusarium türlerine ait izolatlar arasındaki genetik çeşitlik,retrotranspozon temelli olan primerler arası bağlanma bölgesi (iPBS) markörlerikullanılarak incelenmiştir. Bu amaçla, 2017 ve 2018 yıllarında Türkiye veAzerbaycan buğday yetiştirme alanlarından 32 Fusarium türü izolat eldeedilmiştir. İzolatlar arasında en yaygınbulunan tür 23 izolat ile F. culmorumolarak belirlenmiş, bunu beş izolat ile F.pseudograminearum ve dört izolat ile F.graminearum takip etmiştir. Yedi iPBS retrotranspozon markörü izolatlar için99 adeti polimorfik (%86.8) olmak üzere 114 bant üretmiş, primer başınaortalama 14.14 polimorfik bant elde edilmiştir. Markörlerin polimorfik bilgiiçeriği (PIC) ortalama 0.17 olup, bu değer 0.10 ile 0.29 arasında değişmiştir. iPBSmarkörleri ile elde edilen verilere dayalı ağırlıklı olmayan aritmetik ortalamaeş grup metodu (UPGMA) küme analizlerinin sonrasında elde edilen dendrogramda,izolatlar tür seviyesinde ile üç gruba ayrılmıştır. Ayrıca grup içerisinde yeralan izolatlar ise orijini olan ülkeye göre dağılım sergilemiştir. Popülasyonyapısı, Bayesian modellemesine dayanılarak hesaplanmış ve sonuçlardendrogramdaki izolatların kümelenmesini destekleyecek şekilde üç popülasyonaayrılmış (K = 3) ve Ln olasılığınınen yüksek ortalama değeri (-476.0) eşlik etmiştir. iPBS markörlerininkullanılması, türler arası seviyede oldukça yüksek düzeyde polimorfizm üretmişolup türlerin birbirinden ayrılmasını sağlamıştır. Çalışma, buğdaydan eldeedilmiş Fusarium spp. izolatlarınıngenetik çeşitliliğini ve popülasyon yapısını iPBS markörleri analizi ile ortayakoyan ilk çalışma olma özelliği taşımaktadır. KW - Buğday KW - Fusarium spp. KW - iPBS markörleri KW - Retrotranspozon N2 - Genetic variation among theisolates of Fusarium spp., causal agent of root and crown rot ofwinter wheat, was evaluated using retrotransposons-based inter-primerbinding site (iPBS) markers in this study. Thirty-two isolates wereisolated from diseased wheat plants obtained wheat growing areas in Turkey andAzerbaijan in 2017 and 2018, for this purpose. Among the isolates, F. culmorum was the most commonly foundwith 23 isolates, followed by F.pseudograminearum with five isolates, and F. graminearum with four isolates. The seven iPBS retrotransposonmarkers produced 114 bands, of which 99 were polymorphic (86.8%) with anaverage of 14.14 polymorphic bands per primer for the isolates. The polymorphisminformation contents (PIC) per markers ranged from 0.10 to 0.29 with theaverage being 0.17. The dendrogram derived from unweighted pair group methodwith arithmetic mean (UPGMA) cluster analyses based on the data of iPBS markersdivided the isolates into three clusters in according to their taxonomicgrouping at species level and their origin country in the groups. Populationstructure was estimated based on Bayesian modeling and the results showed threepopulations (K = 3) supporting theclustering of isolates in the dendrogram with the highest mean value of Lnlikelihood of data (-476.0). 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