Biotechnology of Flax (Linum usitatissimum)
نویسندگان
چکیده
Biotechnology can offer useful tools to complement conventional breeding programs. The techniques of in vitro selection, that exploit phenomenon, called somaclonal variation, by screening cell cultures for resistance to herbicides, different types of stress or diseases, already helped to obtain tolerant lines of flax (Linum usitatissimum), which were used in further commercial breeding programs. The other important techniques in flax biotechnology are anther and immature embryo cultures. Development of haploid or dihaploid lines based on a regeneration capacity of microspores in immature anthers can speed up conventional breeding. Embryo rescue helps to overcome the post-zygotic incompatibility mechanisms after wide crosses for the transfer of desired traits. One of the main objectives of tissue culture studies is to obtain high-frequency shoot regeneration or somatic embryo formation. Age and viability of the explant, the tissue source and genotype of donor plant from which the explant was excised, composition of the culture medium and plant growth regulator supplementation, are very important for the effectiveness and the direction of morphogenic responses. This review highlights main studies devoted to flax biotechnology and the main factors controlling morphogenesis of L. usitatissimum. _____________________________________________________________________________________________________________
منابع مشابه
7-Oxoorobanchyl acetate and 7-Oxoorobanchol as germination stimulants for root parasitic plants from flax (Linum usitatissimum).
Germination stimulants for root parasitic plants produced by flax (Linum usitatissimum L.) were purified and characterized. The root exudate of flax contained at least 8 active fractions, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography mass spectrometry (GC-MS) analyses suggested that there were 6 strigolactones. Two of them were identified as orobanchol and...
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