Study of dominant symbiotic mutants of pea Pisum sativum L
Sidorova, K.K.; Shumnyĭ, V.K.; Glianenko, M.N.; Vlasova, E.I.; Mishchenko, T.M.; Aleksandrova, I.A.
Genetika 45(7): 907-912
2009
ISSN/ISBN: 0016-6758 PMID: 19705741 Document Number: 630881
Phenogenetic studies of four symbiotic hypernodulating mutants of pea (Pisum sativum L.) induced from seeds of cultivar Rodno by chemical mutagen EMS were conducted. All mutants have improved symbiotic traits, i.e., an increased number of root nitrogen fixating nodules and high activity of nitrogenase. Symbiotic traits were shown to be inherited dominantly. Mutants grown in the field or in a greenhouse showed superiority over the original cultivar in productivity. An important feature of hypernodulating mutants was found that is responsible for the appearance of high-height productive plants in F2 after crossing mutants and the original cultivar. Constant lines retaining the ability for high-level production up to the F5 generation were created based on individual plants.