...Xiaofei Cheng; Guifen Li; Yuhong Tang; Jiangqi Wen ABSTRACT Development of inflorescence architecture is controlled by genetic regulatory networks. TERMINAL FLOWER1 ( TFL1 ), APETALA1 ( AP1 ), LEAFY ( LFY ) and FRUITFULL ( FUL ) are core regulators for inflorescence development. To understand...

... transcription factor, with the domesticated allele conferring a free-threshing character and a subcompact (i.e. partially compact) inflorescence (spike). We demonstrate that mutations in the miR172 binding site of the Q gene are sufficient to increase transcript levels via a reduction in miRNA-dependent...

... expression is based on distinct cis -regulatory regions, the most important being located 3′ of the coding sequence. Our results indicate that TFL1 expression in the shoot apical versus lateral inflorescence meristems is controlled through distinct cis -regulatory elements, suggesting that different signals...

...Elske Kusters; Serena Della Pina; Rob Castel; Erik Souer; Ronald Koes Higher plant species diverged extensively with regard to the moment (flowering time) and position (inflorescence architecture) at which flowers are formed. This seems largely caused by variation in the expression patterns...

... branch angle in the dominant mutant. wab1 mRNA is expressed at the base of branches in the inflorescence and is necessary for LG1 expression. wab1 is not expressed in leaves, except in the dominant mutant. The domain of wab1 expression in the Wab1-R leaf closely mirrors the accumulation of LG1. Although...

... stem cell renewal and organ initiation. In fasciated mutants, organ initiation fails to keep pace with meristem proliferation. The thick tassel dwarf1 ( td1 )mutation of maize affects both male and female inflorescence development. The female inflorescence, which results in the ear, is fasciated...

... a critical role in plant architecture and reproduction. To understand how axillary meristems are initiated and maintained, we characterized the barren inflorescence2 mutant, which affects axillary meristems in the maize inflorescence. Scanning electron microscopy, histology and RNA in situ hybridization...

... into inflorescence shoots and a disruption of sepal and petal development. We describe the changes in an allelic series of nine apetala1 mutants and show that the two functions of APETALA1 are separable. We have also studied the interaction between APETALA1 and other floral genes by examining the phenotypes...

...Steven E. Clark; Mark P. Running; Elliot M. Meyerowitz ABSTRACT We have investigated the effects on plant development of mutations in the Arabidopsis thaliana CLAVATA1 gene. In clavata1 plants, vegetative, inflorescence and floral meristems are all enlarged relative to wild type. The apical...