The induction of haploid cell development into normal plants enables the production doubled lines, which are homozygous and can be used in breeding programs as an alternative to conventionally derived inbred lines. In this paper, we present historical background current status attempts carrot (Daucus carota L.). Economically, is one most important vegetables. It outcrossing diploid (2n = 2x 18)...

Doubled haploids (DHs) are essential founders for breeding via isogenic line production. We determined the optimal timing of first and second (HST1 HST2) double heat shock treatment DH production in willow gudgeon (Gnathopogon caerulescens). Gynogenesis was induced by fertilisation with UV-irradiated sperm (20 mJ/cm2). Each HST performed at 40.5°C 1 min. In experiment I, HST1 applied 23–31 min ...

Abstract Diverse processes leading to doubled haploid (DH) plant production, such as microspore embryogenesis, gynogenesis, and distant hybridization followed by genome elimination, are based on the unique ability of cells form embryos without fertilization. All these possible because various in vitro culture systems that enable growth development tissues or single outside parental organism. Th...

Haploid embriyo ve bitkilerin üretimini birçok faktör belirlemektedir. Donör bitki genotipi tipide bu faktörler arasında gösterilebilir. Hıyar üzerinde daha önce yapılan çalışmalarda, haploid oluşumundaki başarının faktöre bağlı olduğunu açıkça göstermiştir. Bu nedenle çalışma, hıyar türleri genotiplerinin eldesi üzerine etkilerini ortaya koymak amacıyla yapılmıştır. Bitki materyali olarak 2 fa...