PROGRESSIVE VEINBANDING—A NEW MUTATION IN NICOTIANA TABACUM L.

1968 ◽  
Vol 10 (2) ◽  
pp. 232-234
Author(s):  
Bronius Povilaitis ◽  
D. R. Cameron
Keyword(s):  
Nicotiana Tabacum ◽  
Recessive Gene ◽  
Single Recessive Gene ◽  
Normal Allele ◽  
New Mutation ◽  
Mutant Type ◽  
Complete Dominance ◽  
Chlorophyll Deficiency ◽  
Monogenic Inheritance ◽  
Nicotiana Tabacum L

A new mutation for chlorophyll-deficiency in Nicotiana tabacum L., called progressive veinbanding, was found in the field planting of the flue-cured tobacco variety Hicks Broadleaf. The mutant follows monogenic inheritance of a single recessive gene upon which the normal allele exhibits complete dominance. There was a definite association of the mutant type with the M—chromosome of the sylvestris genome in tests against the monosomic series.

Inheritance and qualitative analysis of pigments in a barley mutant

1971 ◽  
Vol 49 (1) ◽  
pp. 49-51 ◽  
Author(s):  
Kari Stephansen ◽  
Saul Zalik
Keyword(s):  
Quantitative Analysis ◽  
Hordeum Vulgare ◽  
Qualitative Analysis ◽  
Chlorophyll A ◽  
Recessive Gene ◽  
Single Recessive Gene ◽  
Hordeum Vulgare L ◽  
Chlorophyll Deficiency ◽  
Reciprocal Crosses ◽  
Barley Mutant

Reciprocal crosses were performed with barley (Hordeum vulgare L. cv. ‘Gateway’) and a virescens mutant derived from it. The results from F1 and F2 generations of the crosses showed that chlorophyll deficiency was governed by a single recessive gene. Quantitative analysis of pigment concentrations in normal and mutant shoots of F1 and F2 plants of the same age provided evidence for heterosis in chlorophyll a synthesis.

scholarly journals Inheritance of the Partly Colored Seedcoat Pattern, Bipunctata, in Common Bean

1996 ◽  
Vol 121 (6) ◽  
pp. 1032-1034 ◽  
Author(s):  
Mark J. Bassett
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Genetic Background ◽  
Recessive Gene ◽  
Recurrent Parent ◽  
Single Recessive Gene ◽  
Complete Dominance ◽  
The Cross

The development of genetic tester stocks in common bean (Phaseolus vulgaris L.) for the partly colored seedcoat patterns `bipunctata BC3 5-593' (t z bip) and `virgarcus BC3 5-593' (t z) was described. The inheritance of the bipunctata pattern was studied in the F2 from the crosses `bipunctata BC1 5-593' × 5-593 and `bipunctata BC2 5-593' × 5-593. The data supported the hypothesis that a single recessive gene (bip) converts virgarcus (t z Bip) to bipunctata (t z bip). The inheritance of bipunctata was also studied in the F2 from the cross `bipunctata BC3 5-593' × `virgarcus BC3 5-593'. The data supported the hypothesis of complete dominance of Bip over bip in a t z genetic background highly related to the recurrent parent 5-593, where only the parental phenotypes appear in the F2.

scholarly journals Characterization and Mapping of a Novel Premature Leaf Senescence Mutant in Common Tobacco (Nicotiana tabacum L.)

Plants ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 415 ◽  
Author(s):  
Xiaoming Gao ◽  
Xinru Wu ◽  
Guanshan Liu ◽  
Zenglin Zhang ◽  
Jiangtao Chao ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Leaf Senescence ◽  
Genetic Manipulation ◽  
Recessive Gene ◽  
Marker Genes ◽  
Regulation Mechanism ◽  
Nicotiana Tabacum L ◽  
Genes Expression ◽  
Leaf Yellowing ◽  
Premature Leaf Senescence

As the last stage of plant development, leaf senescence has a great impact on plant’s life cycle. Genetic manipulation of leaf senescence has been used as an efficient approach in improving the yield and quality of crop plants. Here we describe an ethyl methane sulfonate (EMS) mutagenesis induced premature leaf senescence mutant yellow leaf 1 (yl1) in common tobacco (Nicotiana tabacum L.). The yl1 plants displayed early leaf yellowing. Physiological parameters and marker genes expression indicated that the yl1 phenotype was caused by premature leaf senescence. Genetic analyses indicated that the yl1 phenotype was controlled by a single recessive gene that was subsequently mapped to a specific interval of tobacco linkage group 11 using simple sequence repeat (SSR) markers. Exogenous plant hormone treatments of leaves showed that the yl1 mutant was more sensitive to ethylene and jasmonic acid than the wild type. No similar tobacco premature leaf senescence mutants have been reported. This study laid a foundation for finding the gene controlling the mutation phenotype and revealing the molecular regulation mechanism of tobacco leaf senescence in the next stage.

scholarly journals Inheritance of the Cutleaf Trait in Hazelnut

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 611-612 ◽  
Author(s):  
Shawn A. Mehlenbacher ◽  
David C. Smith
Keyword(s):  
Leaf Shape ◽  
Recessive Gene ◽  
Corylus Avellana ◽  
Single Recessive Gene ◽  
Leaf Color ◽  
Chlorophyll Deficiency ◽  
Segregation Ratios

The cutleaf hazelnut [Corylus avellana L. f. heterophylla (Loud.) Rehder] is grown as an ornamental for its distinct leaf shape. Its leaves are slightly smaller, more deeply lobed, and more sharply toothed than those of standard hazelnut cultivars. When the cutleaf hazelnut was crossed with cultivars with normal leaves, all seedlings had normal leaves. When seedlings were backcrossed to their cutleaf parent, half of the seedlings expressed the cutleaf trait, and when crossed with each other in pairs, 25% of the seedlings were cutleaf. These segregation ratios indicate that the cutleaf trait is conferred by a single recessive gene for which the symbol cf is proposed. Progenies segregating simultaneously for leaf shape and color indicate that the cutleaf locus is independent of the locus controlling red leaf color and of the locus controlling a chlorophyll deficiency, which appears to be identical to that previously observed in seedlings of `Barcelona'.

scholarly journals Inheritance of a Chlorophyll Deficiency in Hazelnut

HortScience ◽  
1991 ◽  
Vol 26 (11) ◽  
pp. 1414-1416 ◽  
Author(s):  
Shawn A. Mehlenbacher ◽  
Maxine M. Thompson
Keyword(s):  
Recessive Gene ◽  
Corylus Avellana ◽  
Pedigree Analysis ◽  
Field Conditions ◽  
Recessive Allele ◽  
Single Recessive Gene ◽  
Chlorophyll Deficiency ◽  
Segregation Ratios ◽  
Chlorophyll Deficiencies

A chlorophyll deficiency expressed as yellowing of leaves was observed in hazelnut (Corylus avellana L.) progenies. Segregation ratios approximated 3 green: 1 yellow, indicating control by a single recessive gene designated chlorophyll deficient #1, for which the symbol c, is proposed. `Barcelona', `Butler', `Compton', `Lansing', Willamette', and the ornamental selection `Redleaf #3' are heterozygous. Pedigree analysis strongly suggests that all heteroxygotes inherited the recessive allele from `Barcelona'. A cross of `Barcelona' with the yellow-leafed ornamental Corylus avellana L. var. aurea Kirchn. produced no yellow-leafed seedlings, indicating that the chlorophyll deficiencies from these two sources are controlled by different loci. Progenies segregating simultaneously for this trait and the gene controlling presence of anthocyanin indicated that the two traits are inherited independently. Seedlings deficient in chlorophyll but with anthocyanin were able to survive under field conditions, while leaves of yellow-leafed seedlings lacking anthocyanin became scorched and the trees died.

Tobacco Chemistry/Chemische Zusammensetzung des Tabaks

1976 ◽  
Vol 8 (6) ◽  
Author(s):  
Arne J. Aasen ◽  
Sven-Olof Almquist ◽  
Curt R. Enzell
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L

Abstract35: two isomeric 5,6-Epoxy-3-hydroxy-7-megastigmen-9-ones from Nicotiana tabacum L.

Inheritance of the Conversion of Nicotine to Nornicotine in Varieties of Nicotiana tabacum L. and Related Amphiploids 1

Crop Science ◽  
1964 ◽  
Vol 4 (4) ◽  
pp. 349-353 ◽  
Author(s):  
T. J. Mann ◽  
J. A. Weybrew ◽  
D. F. Matzinger ◽  
J. L. Hall
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L
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