Morphogenesis and maturation of somatic embryos, ploidy, and genotyping of cell lines (CL) of embryogenic cultures of Larix sibirica Ledeb. in vitro were investigated during 2–6 years. It was revealed that from 2000 to 11103 globular somatic embryos were formed in proliferating CL. However, the ability of somatic embryos to the maturation and germination decreased. Cytogenetic study of embryonal-suspensor masses (ESM) of Larix sibirica demonstrated that cells of long-term cultivated cultures remained diploid. According to microsatellite analysis, proliferating CL of Siberian larch were characterized by weak allelic variability, and cell line 6 and cloned seedlings of this line were genetically stable and corresponded to the donor tree. Embryogenic cell lines composed the collection bank, which will be successfully used for plantation forest growing.
Russian Journal of Plant Physiology – Springer Journals
Published: Oct 19, 2016
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