Host plant control of the inheritance of dinitrogen fixation in the Pisum-Rhizobium symbiosis

Holl, F. B. (1975) Host plant control of the inheritance of dinitrogen fixation in the Pisum-Rhizobium symbiosis. Euphytica, 24 (3). pp. 767-770.

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Abstract

The contribution of the host plant genome in symbiotic dinitrogen fixation has received little attention. In examining more than two thousand samples from the USDA Plant Introduction Collection, host-determined genetic variation in dinitrogen fixation has been found. In genetic analysis of a mutant line of Pisum resistant to nodulation, two genes designated Sym 2 and Sym 3 have been detected; Sym 2 affects nodulation while Sym 3 influences fixation. The two genes segregate independently as dominant Mendelian characters. Effective symbiosis requires the presence of at least one dominant gene at each locus.

Item Type: Article
Additional Information: Dr S N Nigam research collection - Box No:58
Uncontrolled Keywords: Host plant control, Dinitrogen fixation, Pisum-Rhizobium
Author Affiliation: Prairie Regional Laboratory, National Research Council of Canada, S7N OW9, Saskatoon, Saskatchewan, Canada
Subjects: Crop Improvement
Divisions: Chickpea
Groundnut
Pigeonpea
Sorghum
Soyabean
Depositing User: Mr Arbind Seth
Date Deposited: 29 Mar 2013 06:23
Last Modified: 29 Mar 2013 06:23
Official URL: http://dx.doi.org/10.1007/BF00132916
URI: http://eprints.icrisat.ac.in/id/eprint/10072

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