Root-determined hypernodulation mutant of Lotus japonicus shows high-yielding characteristics.
Here we report the phenotypic characteristics of a novel hypernodulation mutant, Ljrdh1 (root-determined hypernodulation 1) of Lotus japonicus. At 12 weeks after rhizobial inoculation, there were no differences between the growth of Ljrdh1 and, wild-type. However, Ljrdh1 showed 2 to 3 times higher nitrogen-fixing activity, and seed and pod yields, were approximately 50% higher than the wild-type. This is the first report of a legume hypernodulation mutant showing normal growth and a high-yielding characteristic under optimal cultivation conditions.
Yokota
Keisuke
K
Biotechnology Research Center, University of Tokyo, Tokyo, Japan.
Li
Yong Yi
YY
Hisatomi
Masahiro
M
Wang
Yanxu
Y
Ishikawa
Kaori
K
Liu
Chi-Te
CT
Suzuki
Shino
S
Aonuma
Kho
K
Aono
Toshihiro
T
Nakamoto
Tomomi
T
Oyaizu
Hiroshi
H
D017343:Genes, Plant / Q000235:genetics; D000070116:Lotus / Q000235:genetics* / Q000254:growth & development / Q000502:physiology*; D009154:Mutation; D010641:Phenotype; D055170:Plant Root Nodulation / Q000235:genetics*; D018517:Plant Roots / Q000235:genetics* / Q000254:growth & development / Q000502:physiology*