Genes affecting flower colour and pH of flower limb homogenates in Petunia hybrida

1983 ◽  
Vol 66-66 (3-4) ◽  
pp. 271-278 ◽  
Author(s):  
P. de Vlaming ◽  
A. W. Schram ◽  
H. Wiering
Keyword(s):  
Petunia Hybrida ◽  
Flower Colour

Research note: Maternally-controlled ovule abortion results from cosuppression of dihydroflavonol-4-reductase or flavonoid-3′,5′-hydroxylase genes in Petunia hybrida

2002 ◽  
Vol 29 (12) ◽  
pp. 1500 ◽  
Author(s):  
Richard A. Jorgensen ◽  
Qiudeng Que ◽  
Carolyn A. Napoli
Keyword(s):  
Seed Coat ◽  
Petunia Hybrida ◽  
Chalcone Synthase ◽  
Flower Colour ◽  
Female Sterility ◽  
Wild Type ◽  
Direct Inhibition ◽  
Embryo Abortion ◽  
Maternal Tissue ◽  
Normal Seed

Transgenes designed to overexpress anthocyanin genes An6 (encoding dihydroflavonol-4-reductase) or Hf1 (encoding flavonoid-3′,5′-hydroxylase) in Petunia hybrida L. produced flower colour phenotypes similar to those caused by sense cosuppression of chalcone synthase (Chs) genes. However, unlike Chs, sense cosuppression of An6 and Hf1 resulted in female infertility in transgenotes exhibiting complete phenotypic suppression of anthocyanins. Female sterility appeared to be due to embryo abortion, with discolouration of ovules first appearing about 4 d post-fertilization, followed by gradual collapse of the ovule. Pollen from cosuppressed, female-sterile transgenotes placed on wild-type stigmas produced normal seed set, indicating that sterility of cosuppressed plants was maternally controlled. We suggest an hypothesis that cosuppression of An6 and Hf1 leads to accumulation of dihydroflavonols in the seed coat, a maternal tissue, and that this accumulation inhibits embryo growth, either directly or indirectly. In this hypothesis, direct inhibition of embryo growth would require that dihydroflavonols diffuse from the seed coat into the embryo and act there, whereas indirect inhibition would require that dihydroflavonols interfere with some capacity of the seed coat to promote embryo growth.

A gene for flower colour fading in Petunia hybrida

1982 ◽  
Vol 61 (1) ◽  
pp. 41-46 ◽  
Author(s):  
P. de Vlaming ◽  
J. E. M. van Eekeres ◽  
H. Wiering
Keyword(s):  
Petunia Hybrida ◽  
Flower Colour

scholarly journals Studies on the mechanism of flower colour formation : I. Variation and heredity of flower colour in Petunia hybrida.

1952 ◽  
Vol 1 (4) ◽  
pp. 241-246 ◽  
Author(s):  
Kazuo HAZAMA
Keyword(s):  
Petunia Hybrida ◽  
Flower Colour

Regulation of gene action in Petunia hybrida: Unstable alleles of a gene for flower colour

1978 ◽  
Vol 53 (4) ◽  
pp. 157-167 ◽  
Author(s):  
F. Bianchi ◽  
P. T. J. Cornelissen ◽  
A. G. M. Gerats ◽  
J. M. W. Hogervorst
Keyword(s):  
Petunia Hybrida ◽  
Gene Action ◽  
Flower Colour ◽  
Unstable Alleles

BREEDING FOR FLOWER COLOUR IN PETUNIA HYBRIDA HORT

1981 ◽  
pp. 35-40 ◽  
Author(s):  
S.G. Kashikar ◽  
A.S. Khalatkar
Keyword(s):  
Petunia Hybrida ◽  
Flower Colour

Influence of maize Lc regulatory gene on flower colour of transgenic tobacco and petunia

2007 ◽  
Vol 4 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Yang Chi-Chun ◽  
Yu Jing-Juan ◽  
Zhao Qian ◽  
Zhu Deng-Yun ◽  
Ao Guang-Ming
Keyword(s):  
Transgenic Tobacco ◽  
Petunia Hybrida ◽  
Expression Vector ◽  
Regulatory Gene ◽  
Flower Colour ◽  
Chain Reaction ◽  
Tobacco Plants ◽  
Plant Expression Vector ◽  
Polymerase Chain ◽  
Transgenic Petunia

AbstractThe Lc regulatory gene affects the formation of anthocyanin in plants. XY355 promoter, a petal-specific promoter, was obtained from the genome of rape (Brassica napus) by polymerase chain reaction (PCR). A plant expression vector, pXY60, was constructed, which contained the maize Lc regulatory gene under the control of the XY355 promoter. The vector was introduced into tobacco (Nicotiana tabacum) and petunia (Petunia hybrida) by an Agrobacterium tumefaciens-mediated method. The flower colour of some transgenic tobacco plants was changed from light red to deep red and that of some transgenic petunia plants had changed from white to light purple.

Flavonoid Synthesis in Petunia Hybrida; Genetics and Molecular Biology of Flower Colour

1992 ◽  
pp. 165-199 ◽  
Author(s):  
Anton G. M. Gerats ◽  
Cathie Martin
Keyword(s):  
Molecular Biology ◽  
Petunia Hybrida ◽  
Flower Colour ◽  
Flavonoid Synthesis
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