The mechanism and inheritance of intraflower self‐pollination in self‐pollinating variant strains of periwinkle

Kulkarni, R. N.; Sreevalli, Y.; Baskaran, K.; Kumar, Sushil

doi:10.1046/j.1439-0523.2001.00609.x

Cited by 20 publications

(12 citation statements)

References 17 publications

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“…Parental plants were raised in a glass house from seeds produced by artificial self-pollination. Reciprocal crosses were also made as described earlier (Kulkarni et al, 2001). The F 1 plants were selfed and also backcrossed to both the parents.…”

Section: Methodsmentioning

confidence: 99%

Genetics of novel corolla colours in periwinkle

2005

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Inheritance of a novel corolla colour in periwinkle [Catharanthus roseus (L) G. Don], viz. magenta, was studied by crossing an accession MJ, possessing this corolla colour, with cultivar Nirmal, possessing white corolla. The accession MJ was also crossed with another accession OR, possessing another novel corolla colour, viz. orange-red, to determine the relationship between genes governing magenta corolla and orange-red corolla. The F 1 plants of the cross MJ× Nirmal had pink corolla and red eye. In the F 2 generation, five kinds of corolla colours were observed: (i) pink corolla and red eye, (ii) rose corolla and red eye, (iii) magenta corolla and red eye, (iv) white corolla and red eye and (v) white corolla. The observed frequencies of the five kinds of plants fitted a ratio of 144:27:9:12:64. The progeny of the backcross, F 1 × MJ, segregated into three kinds of plants, (i) pink corolla and red eye, (ii) rose corolla and red eye and (iii) magenta corolla and red eye, in the ratio of 2:1:1, while the backcross, F 1 × Nirmal, segregated into two kinds of plants, (i) pink corolla and red eye and (ii) white corolla, in the ratio of 1:1. Two new genes (proposed symbols O m and J) appeared to be involved in the determination of magenta and rose corolla colours. Interaction between four independent genes R, W, O m and J, appeared to explain the observed segregation in the cross MJ × Nirmal. The F 1 plants of the cross MJ × OR had scarlet-red corolla and red eye. The segregation data of F 2 and backcross generations suggested that genes governing orange-red corolla and magenta corolla were allelic to each other. Two new and non-parental corolla colours viz., rose corolla and scarlet-red corolla, were observed in the progeny of the crosses of the present study.

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Section: Methodsmentioning

confidence: 99%

Genetics of novel corolla colours in periwinkle

2005

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“…It was crossed with a white flowered variety, Nirmal. In an earlier study the flower colour genotype of Nirmal (W) was found to be rrWW [11]. Parent plants were raised in a glasshouse from seeds obtained by artificial self-pollination pollen is powdery and the flowers are easily selfed by a means of a blunt needle inserted into the top of the tube [9].…”

Section: Methodsmentioning

confidence: 99%

“…Altogether 195,103 and 93 plants of F2, and two backcrosses, F1xV and F1x W respectively, were scored for corolla color, along with 10 plants each of the parental and F1 generations. Chi-square were used for testing the goodness-of-fit of observed and expected frequencies of different phenotypic classes in the F2 and backcross generations by Kulkarni, Sreevalli et al (2001) [11].…”

Section: Methodsmentioning

confidence: 99%

Genetics of Flower Color in Periwinkle <i>Catharanthus roseus</i> (L) G. Don

Abdelmageed¹,

Abdel-Rahman²

2017

IJGG

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Genetics of flower Color in winka Catharanthus roseus (L) G.Don were investigate by inheritance two types(strains) of plants with different flowers color were used in this study, violet (V) and White (W) color as parents, to determine the number of genes involved. This study was conducted at the Department of Chemistry &Biology at the Faculty of Education, University of Kassala, kassala State, Sudan, during: the autumn, seasons for two years 2010-2012. First the two parents were covered to ensure self pollination. Reciprocal cross has been carried out between the two inbred parents. The study showed that a single pair of genes is probably involved in flower colour and that gene for violet color is incompletely dominant over that for white color. The reciprocal crosses gave the same results indicating no role of cytoplasmic genes in the inheritance of these colors.

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“…A mutagenized population was produced that is suitable for screening by genetic techniques such as TILLING [19][20][21].…”

Section: Overall Characteristics Of P Hybrida Mutagenized Populationsmentioning

confidence: 99%

Optimization of EMS Mutagenesis on Petunia for TILLING

Y¹,

HD²

2014

Adv Crop Sci Tech

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The development of a chemically-mutagenized population of Petunia hybrida could enable the identification of novel alleles for crop improvement. Conditions were determined for mutagenizing petunia with ethyl methanesulfonate (EMS), while minimizing deleterious effects on viability and fertility. A mutagenized population of the doubled haploid P. hybrida line 'Mitchell Diploid' was developed as a resource for TILLING. Three mutagenesis parameters were investigated in this study: the imbibition of seeds prior to EMS treatment, the EMS concentration, and EMS exposure time. Based on these results, the mutagenesis of 2000 petunia seeds for TILLING was conducted with a 12 hour imbibition followed by exposure to 0.1% EMS for 12 hours.

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The mechanism and inheritance of intraflower self‐pollination in self‐pollinating variant strains of periwinkle

Cited by 20 publications

References 17 publications

Genetics of novel corolla colours in periwinkle

Genetics of novel corolla colours in periwinkle

Genetics of Flower Color in Periwinkle <i>Catharanthus roseus</i> (L) G. Don

Optimization of EMS Mutagenesis on Petunia for TILLING

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The mechanism and inheritance of intraflower self‐pollination in self‐pollinating variant strains of periwinkle

Cited by 20 publications

References 17 publications

Genetics of novel corolla colours in periwinkle

Genetics of novel corolla colours in periwinkle

Genetics of Flower Color in Periwinkle &lt;i&gt;Catharanthus roseus&lt;/i&gt; (L) G. Don

Optimization of EMS Mutagenesis on Petunia for TILLING

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Genetics of Flower Color in Periwinkle <i>Catharanthus roseus</i> (L) G. Don