Induction of Somatic Embryogenesis of Three Different Mango (Mangifera indica L.) Genotypes
文献类型: 外文期刊
作者: Wei, Junya 2 ; Chen, Yeyuan 2 ; Zhang, Yueyang 2 ; Gao, Aiping 2 ; Liu, Debing 1 ;
作者机构: 1.Hainan Univ, Coll Appl Sci & Technol, Danzhou 571737, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Danzhou 571737, Hainan, Peoples R China
关键词: mango;somatic embryogenesis;induced
期刊名称:IX INTERNATIONAL MANGO SYMPOSIUM
ISSN:
年卷期:
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收录情况: SCI
摘要: Somatic embryogenesis is useful for preservation, clonal multiplication and genetic manipulation. The present study established a somatic embryogenesis system of three mango genotypes: 'Baixiangya', a polyembryonic cultivar; 'Tainong 1', a monoembryonic cultivar and 'Guifei'. Immature fruits were collected from these cultivars 40-60 days after anthesis in the Germplasm Research Institute of Tropical Crops of the Chinese Academy of Tropical Agriculture Sciences, Hainan, China during February and March. The ovules were aseptically removed from the immature seeds and cultured on the modified B5 medium with 2.74 mM L-glutamine, 0.57 mM ascorbic acid, 6% (w/v) sucrose and 0.8% (w/v) agar powder. Induction of embryo-genie competence was controlled by genotype and various growth regulators (2,4D or 6-BA alone, or 2,4D with 6-BA). Explants grown on the basal medium (control) were also inductive but at a very low efficiency (<10%). All treatments were significantly inductive compared with the control. 'Baixiangya' cultivar had the highest embryo-genic potential, followed by 'Guifei' and 'Tainong 1'. The most effective culture was 'Baixiangya' cultivar treated with 2,4-D 5 mg/1 + 6-BA 2 mg/1.
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