DOT BIEN - Turkish Journal of Biology Turk J Biol(2013 37...

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1 http://journals.tubitak.gov.tr/biology/ Turkish Journal of Biology Turk J Biol (2013) 37: © TÜBİTAK doi:10.3906/biy-1303-19 In vitro mutagenesis of Etlingera elatior (Jack) and early detection of mutation using RAPD markers Muhamad Fahmi YUNUS 1 , Maheran Abd AZIZ 1,2, *, Mihdzar Abdul KADIR 1 , Siti Khalijah DAUD 3 , Azmi Abdul RASHID 1 1 Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia 2 Laboratory of Plantation Crops, Institute of Tropical Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia 3 Department of Biology, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia * Correspondence: [email protected] 1. Introduction For modern and industrialized horticulture, there is always a demand and necessity for new cultivars. Induced mutations have played an important role in the improvement of plants, and more than 3200 mutant cultivars have been developed through this approach (Pierre, 2012). Modern day plant breeding is based on creating variations followed by selection, evaluation, and multiplication of the desired genotypes. In a crop improvement program, plant breeders often combine several techniques in order to increase efficiency and reduce the time needed for the development of a new cultivar. Plant breeders combine tissue culture technique for rapid multiplication of regenerants, mutation induction to enhance variations, and molecular marker methods to detect the genetic variation (Ahloowalia and Maluszynski, 2001). Such a combination of techniques has been exploited for the creation of new and novel plant cultivars, particularly in vegetatively propagated species (Broertjes and Van Harten, 1988; Pinet-Leblay et al., 1992). E. elatior , also known as torch ginger, is one of the neglected plants in the family Zingiberaceae, and scientific research on its propagation, biotechnology, and ecology is limited. However, this ginger plant offers great scope for the development of a large range of ornamental and cut flower types (Poulsen, 2010). Ismail (2009) reported that E. elatior is one of the 30 popular herbs or new industrial crops that are in high demand in Malaysia. It is now cultivated on a commercial scale in places like Australia, Thailand, and Costa Rica for cut flower production (Ismail, 2009; Segalen, 2010). The plant itself creates a great garden landscape, its flowers having an immense ornamental value, and it also has a place in eco-gardens (Wong, 2008). To sustain in the ornamental and cut flower industry, torch ginger requires continuous improvement of certain characters such as flower color, morphology, longevity, size, odor, and decreasing time to flower formation. Unfortunately, conventional breeding of E. elatior is handicapped by cross incompatibility, poor fruit set, and low seed production (Marcsik and Hoult, 2010). Due to these factors, alternative approaches for crop improvement of E. elatior , such as mutation induction, could be explored.
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