Diallel analysis of soluble protein in root nodules and seeds in blackgram [Vigna mungo (L.) Hepper]

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Research Paper 01/04/2011
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Diallel analysis of soluble protein in root nodules and seeds in blackgram [Vigna mungo (L.) Hepper]

Rabeya Basari, MA Samad, AC Deb, MA Khaleque
J. Bio. Env. Sci.1( 2), 7-15, April 2011.
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Abstract

The study was done to see the inheritance of soluble protein in two quantitative characters, such as seeds and nodules per plant in Blackgram [Vigna mungo (L.) Hepper]. Dominance and additivity were detected for soluble protein in both of the characters. Soluble protein in seeds was found to be regulated by partial dominance whereas, the same in nodule character showed over dominance. The asymmetry in the proportion of genes with positive and negative effects in the parents was indicated for soluble protein in both of the characters. The soluble protein in seeds indicated the presence of an excess of dominant genes in the parents. On the other hand, the same in nodules indicated the presence of an equal proportion of dominant and recessive genes. The negative dominant genes were controlling the character whereas, only one group of dominant genes was found to the same condition in both of the characters. This study also suggested that dominance effect over all loci in heterozygous phase was important for the soluble protein in seeds yield per plant but the dominance effect over all loci in heterozygous phase was important for the total amount of soluble protein in nodules. The general combining ability and specific combining ability were found to be significant for the soluble protein. It was noted that the line 20 (E2025) was good general combiner for the same. The crosses 5 (EML013) × 17 (E86325) and 5 (EMLO13) × 20 (E2025) for soluble protein in nodules and 5 (EMLO 13) × 21 (E86309), 17 (E86325) × 21 (E86309) in seeds were found to be the best combiners as judged from the specific combining ability effects.

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