Genetic analysis and complementation studies on a number of mutant supernodulating soybean lines

Delves, Angela C., Carroll, Bernard J. and Gresshoff, Peter M. (1988) Genetic analysis and complementation studies on a number of mutant supernodulating soybean lines. Journal of Genetics, 67 1: 1-8.


Author Delves, Angela C.
Carroll, Bernard J.
Gresshoff, Peter M.
Title Genetic analysis and complementation studies on a number of mutant supernodulating soybean lines
Journal name Journal of Genetics
Publication date 1988-04
Sub-type Article
DOI 10.1007/BF02927732
Volume number 67
Issue number 1
ISSN 0022-1333; 0973-7731
Start page 1
End page 8
Total pages 8
Place of publication Karnataka, India
Publisher Indian Academy of Sciences
Language eng
Formatted abstract Genetic analysis was done on a number of nitrate tolerant supernodulating (nts) mutant soybean lines. These lines are altered in the autoregulation response, and each was isolated as a separate mutational event following chemical mutagenesis. Crosses were made between nts lines on a diallel pattern, and each was also crossed using nts lines as female parent, to wild-type nodulation cultivars. F1 and F2 data were analysed from each cross for nodulation type and number. No complementation was noted where nts lines were intercrossed, suggesting that in each line the same gene was affected. Where nts lines were crossed with wild-type cultivars all the F1 progeny were wild-type, confirming that the nls gene is recessive and, with one exception, nts 1116, all of the F2 progeny segregated into a 3:1 wild-type to supernodulating phenotype, indicating that a single gene is involved. The hypernodulating line nts 1116 gave a 1:1 ratio in its F2 progeny when crossed with other nts lines. This line behaved as a dominant in the latter crosses. No wild-type segregants were recovered, therefore again no complementation look place. This line may be a leaky mutant with partial autoregulation as its segregation ratios do not fall into any of the obvious patterns.
Keyword Supernodulating
Soybean
Complementation genetic analysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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