Abstract
To attempt to introduce genetic information of disease resistance from Musa acuminata cv. Mas (AA) to Musa silk cv. Guoshanxiang (AAB) and obtain somatic hybrids, we developed an asymmetric protoplast fusion with 20% (w/v) polyethylene glycol (PEG). The protoplasts derived from embryogenic suspension cultural cells of cv. Guoshanxiang (AAB) and cv. Mas (AA) were, respectively treated with 1.5 mM iodoacetamide (IOA) and with ultraviolet light (UV) at an intensity of 50 W/m2 for 120 s. A total of 47 regenerated green plants were obtained and eight of which were survived in greenhouse. Six of the survived plants were identified as hybrids by RAPD analysis and only three hybrids were retained vigorously in field. The hybrid nature of the three plants was further confirmed according to their ISSR (inter-simple sequence repeat) patterns and the results indicated that they were true somatic hybrids. Chromosome analysis revealed that the three hybrids possessed an aneuploid chromosome number (2n = 34).
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Abbreviations
- BA:
-
6-Benzylaminopurine
- 2, 4-D:
-
2,4-Dichlorophenoxyacetic acid
- ECS:
-
Embryogenic cell suspensions
- IOA:
-
Iodoacetamide
- ISSR:
-
Inter-simple sequence repeat
- MES:
-
2-N-morpholino ethanesulfonic acid
- NAA:
-
1-Naphthaleneacetic acid
- PEG:
-
Polyethylene glycol
- RAPD:
-
Random amplified polymorphism DNA
- UV:
-
Ultraviolet light
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Acknowledgments
This work was supported by grants from National Natural Science Foundation of China (30400287), Guangdong Natural Science Foundation of China (011126, 06023159), Programs for Science and Technology Development of Guangdong (2006B20101014) and Programs for Science and Technology Development of Guangdong (2006Z3-E0281).
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Xiao, W., Huang, X., Gong, Q. et al. Somatic hybrids obtained by asymmetric protoplast fusion between Musa Silk cv. Guoshanxiang (AAB) and Musa acuminata cv. Mas (AA). Plant Cell Tiss Organ Cult 97, 313–321 (2009). https://doi.org/10.1007/s11240-009-9530-1
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DOI: https://doi.org/10.1007/s11240-009-9530-1