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Specificity of the Rhizobium —legume symbiosis obtained after mutagenesis in pea ( Pisum sativum L.)
Author(s) -
SAGAN M.,
MESSAGER A.,
DUC G.
Publication year - 1993
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1993.tb03925.x
Subject(s) - pisum , sativum , biology , symbiosis , rhizobium , legume , mutant , botany , mutagenesis , rhizobiaceae , gene , genetics , bacteria
SUMMARY Within a set of 13 induced symbiotic pea ( Pisum sativum L.) mutants, two distinct mutated genes sym25 and sym26 , selected for ineffective nodulation have been counteracted in their effect by Rhizobium strains 254 and 94 respectively, thereby establishing an N 2 ‐fixing symbiosis. This suggests that mutagenesis can be a helpful tool in creating specificity systems such as those described in centres of origin and diversification of legume species.