scholarly journals A Research Strategy to Understand the Mechanisms that Govern Flower Color Pattern Formation

2014 ◽  
Vol 48 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Masayoshi NAKAYAMA
Keyword(s):  
Pattern Formation ◽  
Flower Color ◽  
Color Pattern ◽  
Research Strategy ◽  
Flower Color Pattern

scholarly journals Genetics of the Star Mutation in Petunia ×hybrida

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1007C-1007
Author(s):  
Robert Griesbach ◽  
Ron Beck
Keyword(s):  
Gene Expression ◽  
Gene Silencing ◽  
Structural Gene ◽  
Petunia Hybrida ◽  
Human Cancer ◽  
Flower Color ◽  
Color Pattern ◽  
Model System ◽  
Wide Range ◽  
Flower Color Pattern

Differences in structural gene expression are responsible for a wide range of responses from human cancer to patterned flowers. Gene silencing is one of the ways in which gene expression is controlled. We have developed a model system to study gene silencing using a gene silencing mutation in Petunia ×hybrida (Star mutation) and the ability of certain viruses to reverse the silencing mutation. This model system was used to characterize how the Star flower color pattern was controlled.

scholarly journals A New Gene for Flower Color Pattern, White Banner (wb), in Progeny of an Interspecific Hybrid between Common and Scarlet Runner Beans

1993 ◽  
Vol 118 (6) ◽  
pp. 878-880 ◽  
Author(s):  
Mark J. Bassett
Keyword(s):  
Recessive Gene ◽  
Flower Color ◽  
Plant Introduction ◽  
Color Pattern ◽  
Dry Bean ◽  
Genetic Stocks ◽  
Flower Color Pattern ◽  
New Gene ◽  
The Cross ◽  
Scarlet Runner Bean

A new gene for flower color pattern, designated white banner (WB), appeared in material derived from the cross `Harvester' snap bean (Phaseolus vulgaris L.) × Plant Introduction (PI) accession 273666 of scarlet runner bean (P. coccineus L.). The WB character has a white banner petal and pale violet wings (veronica-violet 639/2). The inheritance of the mutant was studied in crosses involving dry bean breeding line 5-593, which has bishops-violet (wild-type) flowers, and genetic stocks v BC2 5-593 (white flowers) and blu BC2 5-593 (blue flowers). Segregation in F2 and F3 progenies from the cross v BC2 5-593 × WB supported the hypothesis that WB is controlled by a single recessive gene that is nonallelic with the V locus. An allelism test with blu BC2 5-593 gave evidence that WB is not allelic with the blu locus. The gene symbol wb is proposed for the gene producing WB.

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