Aspir (Carthamus tinctorius L.)’de yaprak dikenliliği ve çiçek renginin genetiği

Çiçek rengi ve dikensizlik özellikleri süs bitkisi olarak kuru ve taze kesme çiçekçilikte kullanılan Aspir (Carthamus tinctorius L.) için önemli kalıtsal karakterlerdir. Bu araştırmada, çiçek rengi ve dikenlilik karakterlerinin kalıtımını belirlemek amacıyla, her iki karakter bakımından farklı olan Dinçer 5-118 (P1, dikensiz ve kırmızı çiçekli) ve Montola 2000 (P2, dikenli ve sarı çiçekli) çeşitlerinin F1 ve F2 generasyonları ile geri melez populasyonları (BC1P1 ve BC1P2) analiz edilmiştir. Elde edilen veriler, her iki karakterin de birbirlerinden bağımsız olarak monogenik kalıtım gösterdiğini, dikenliliğin dikensizlik üzerine ve kırmızı çiçek renkliliğinin sarı çiçek renkliliği üzerine baskın olduğunu göstermiştir. F1 generasyonunun tamamı kırmızı çiçekli ve dikenli fenotipe sahip iken, F2 generasyonunda 9:3:3:1 oranına uygun dört farklı fenotip (kırmızı-dikenli:kırmızı-dikensiz : sarı-dikenli : sarı-dikensiz) elde edilmiştir. BC1P1 generasyonunda bütün bitkiler kırmızı çiçekli, ancak dikenlilik için 1:1 açılımına uygun, BC1P2 döllerinde ise bütün bitkiler dikenli, ancak çiçek rengi için 1:1 açılımına uygun olduğu belirlenmiştir.

Genetic of flower color and leaf spininess in safflower (Carthamus tinctorius L.)

Spininess and flower color are important hereditary characteristics of safflower (Carthamus tinctorius L.) used in fresh-cut and dried flowers as ornamental plant. In present study, F1 and F2 generations and their backcross (BC1P1 and BC1P2) progenies of Dinçer 5-118 (P1, spineless and red flower) and Montola 2000 (P2, spiny and yellow flower) were analyzed with the aim of determining the mode of inheritance of spiny and flower color.. Spininess and color flower of safflower were controlled by single dominant gene, each of which is independently. The spiny phenotype was completely dominant to spineless. Also, the red flower phenotype was completely dominant to yellow flower. All plants in the F1 generation had red flowers and spiny phenotype. In the segregation F2 generation, individuals were classified in four group fitting a 9:3:3:1 ratio (red-spiny: red-spineless: yellow-spiny:yellow-spineless). All plants in the BC1P1 generation had red flower, but segregated into a 1:1 ratio for spiny and spineless. On the other hand, all of BC1P1 population had spiny,but segregated into a 1:1 ratio for red and yellow color of flower.

Keywords:

Safflower, Leaf spininess Flower color, Inheritance,

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