Identification of male sterility maintainer lines for Ogura radish (Raphanus sativus L.) |
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Authors: | MSH Hawlader MAK Mian M Ali |
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Institution: | (1) Department of Genetics and Plant Breeding, Institute of Postgraduate Studies in Agriculture, Salna, Gazipur, 1703, Bangladesh;(2) Present address: Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, 1701, Bangladesh |
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Abstract: | ‘Ogura radish’, a cytoplasmic genetic male sterile line, was crossed with four local and three Japanese cultivars to identify
maintainer lines. Out of seven F1 families, one cross involving a local cultivar, Aushi, produced 100% male sterile (MS) progeny. The crosses involving the
other two local cultivars, Tangail Local and Kuni, produced about 90% MS progeny, indicating the presence of maintainer gene(s)
for male sterility. The fourth local cultivar, Tasaki, produced 100% male fertile (MF) progeny. All three exotic cultivars
appeared to possess the chromosomal gene(s) for controlling the male sterility. In BC1, BC2 and BC3 generations, segregation of MS plants were more frequent when ‘Aushi’ was used as recurrent parent. The expression of male
sterility was not affected by seasonal influences. Thus the local cultivar ‘Aushi’ may be used as maintainer line for ‘Ogura
radish’. To produce hybrid seed, ‘Tasaki’ can be used as pollinator line as it exhibit high heterosis with ‘Aushi’.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Raphanus sativus male sterility maintainer lines hybrid seed Bangladesh |
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