Claim · model-written summary
In the proliferating floral meristem and pfo-2 mutants, the expression patterns of the A and C function genes were drastically altered.
Lotus japonicusVerbatim
t0“Floral Patterning in Lotus japonicus”
e0“In proliferating floral meristem and pfo-2 mutants, all B function genes were down-regulated and the expression patterns of the A and C function genes were drastically altered”
Title
Floral Patterning in Lotus japonicus
Zhi-cheng Dong; Zhong Zhao; Cheng-wu Liu; et al. PLANT PHYSIOLOGY 2005. doi:10.1104/pp.104.054288
Other claims from this paper (9)
- Observation The proliferating floral meristem and pfo-2 mutants showed similar phenotypes, with indeterminate floral structures and altered floral organ identities.
- Mechanism Loss of function of LjLFY and LjUFO/Pfo is likely responsible for the respective mutant phenotypes.
- Observation Some of the cloned B and C function genes were duplicated.
- Observation RNA in situ hybridization showed the C function genes were expressed transiently in the carpel.
- Observation RNA in situ hybridization showed the C function genes were expressed continuously in stamens.
- Observation The C function genes showed complementarity with the A function genes in the heterogeneous whorl.
- Observation In the proliferating floral meristem and pfo-2 mutants, all B function genes were down-regulated.
- Mechanism The authors conclude LjLFY and LjUFO/Pfo are required for activation of B function genes and function together in recruitment and determination of petals and stamens.
- Mechanism The authors suggest gene duplication, change in expression pattern, gain or loss of functional domains and alteration of key gene functions all contribute to the divergence of floral patterning in L. japonicus.