scholarly journals INHERITANCE OF COLOR IN THE EGGPLANT

1969 ◽  
Vol 16 (1) ◽  
pp. 19-30
Author(s):  
J. A. B. Nolla

(1) Inheritance studies on the color in the eggplants have been made by various investigators but the first one to attempt an analysis was Halsted (5) who reported a 3:1 ratio of green to white color of flesh and a similar ratio of purple to colorless skin; also a 9:3:3:1 ratio of purple, green, pink, and white fruit. Several workers have pointed out the dominance of purple color over white in fruits. Bayla (1) apparently regarded F1 generations of reciprocal crosses as dissimilar. (2) The methods employed in the various crosses are given. (3) Seedlings in some of the crosses could be classified according to their color during the very early stages. Plants of the Green variety remain green throughout the entire life cycle, those of Fajardo and White Pompadour are green during the first two or three weeks only and then turn light purple; while those of Camuy, Black Beauty and University are purple from the very beginning. (4) Intense purple color of Camuy is inherited in a 3:1 ratio to Green. The same ratio exists between the green of Green and the purple of University and Black Beauty. The University purple is inherited in the same ratio in respect to Fajardo green purple striped. For all these a unit factor Pr pr is assumed. (5) Green color of fruit in the crosses studied is always associated with green plant color; and purple, red and pink with purple color of plant. White corolla is always associated with green color of plant; striped anthers with a recessive factor for fruit or plant color. (6) Red, purple and pink color of fruit is dominant over green and inherited in a 3:1 ratio. Likewise green purple striped is dominant over white purple striped and is inherited in a 3:1 ratio. Purple was proved to be also dominant over white purple striped. Green purple striped acts as a recessive in respect to pink or purple, but as a dominant in respect to white purple striped. (7) Violet or purple corolla is dominant over white corolla. They stand in a 3:1 ratio in the F2 generation. (8) Striping of anthers is dominant over non-striping and is inherited in a 3:1 ratio. (9) A unit factor appears to exist for each of the characters; color of plant, color of fruit, color of corolla and striping of anthers. The following allelomorphic pairs of factors are assumed: plant color Pr pr, fruit color Cc, corolla color C1c1, and striped character of anthers St st. A. single factor might be assumed as affecting all the characters here involved. (10) There may be complete linkage between these characters White corolla and non-striped anthers always stand for green fruit, and green plant (all recessive characters). On the other hand striped anthers always go with bright colored fruit and with purple plants. (11) The composition of a green plant with white corolla, green fruit and non-striped anthers may be represented as prpr cc C1 c1 stst, or as prpr, cc, etc.

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 602c-602
Author(s):  
Harry S. Paris

Most cultivars of acorn squash (Cucurbita pepo), such as `Table Queen', have fruit that are light green when young, become dark green by intermediate age, and remain dark green through maturity, carrying genotype D/D l-l/l-1 L-2/L-2. Many other forms of C. pepo that carry this genotype, the most familiar being the Halloween and pie pumpkins, turn orange at maturity. The genetic basis for green color retention of acorn squash was investigated by crossing `Table Queen' with `Vegetable Spaghetti', `Fordhook Zucchini', and accession 85k-9-107-2 (the parental, filial, backcross, and testcross generation progenies being grown out in the field and observed and scored for fruit color at maturity, between 40 and 44 days past anthesis). The results indicated that the three stocks crossed with `Table Queen' carry two recessive genes, designated mature orange-1 (mo-1) and mature orange-2 (mo-2), which act in concert to result in complete loss of green color before maturity in 1-1/1-1 plants. `Table Queen' is Mo-l/Mo-1 Mo-2∼o-2. Genes D and mo-2 are linked, ≈15 map units apart.


2018 ◽  
Vol 2 (2) ◽  
pp. 54 ◽  
Author(s):  
Muhamad Syukur ◽  
Sobir , ◽  
Awang Maharijaya ◽  
Syarifah Iis Aisyah ◽  
Dewi Sukma ◽  
...  

The ornamental chili is valueable, but the commercial productivity still lower. It is important to evaluate ornamental chili as a new variety. The evaluation used randomized block completely design for genotypes Lembayung IPB, IPB.318092-1-4K-1-1 (G4K), IPB.318092-1-5K-1-1(G5K1), IPB.318092-1-5K-1-2 (G5K2), IPB.318320-1-3U-1-1(G3U), IPB.5.318-1-20-1(G120), IPB.5.318-3-1-1K-1 (G311K), and testers are Bara, Ungara IPB dan Seroja IPB. Lembayung IPB has intermediate habituate, middle hight plant, more number of fruits, stem purple color, purple of pedicle and flower, purple of young fruit color then changes into orange. Fruit colors suitable for ornamental chili plants.Keywords : color, flower, fruit, ornamental, purple


HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 450f-450
Author(s):  
Harry S. Paris

The fruits of Cucurbita pepo cv. Table Queen are light green when young, turn dark green by intermediate age (15-18 days past anthesis) and remain dark green through maturity. Three major genes are known to affect developmental fruit color intensity in C. pepo: D, 1-1, and 1-2. Table Queen was crossed with cv. Vegetable Spaghetti and with tester stocks of known genotype in order to determine the genetic basis of its developmental fruit coloration. The results from filial, backcross. and testcross generations suggest that Table Queen carries gene D, which confers dark stem and fruit color from intermediate fruit age through maturity. Table Queen also carries L-2. which confers Light Type 2 (a pattern of grayish green hue) fruit color from intermediate age, but D is epistatic to L-2. The genotype of Table Queen is D/D 1-1/1-1 L-2/L-2. Clear-cut results were not obtained -- regarding the genetic basis of the retention of green color through maturity of Table Queen fruits.


1992 ◽  
Vol 117 (4) ◽  
pp. 643-645 ◽  
Author(s):  
Gregory C. Peterson ◽  
Leonard M. Pike

Fruit of TAMU breeding line 830397 are green in contrast to the cream or orange fruit of commercial cultivars at the mature-seed stage (MS-S). Inheritance of this trait for green MS-S fruit color in Cucumis sativus was investigated. A new locus, gn, is proposed as well as the elimination of the C locus. MS-S fruit color is controlled by two major genes, R and Gn. Fruit is orange when the genotype is R_ _ and green when the genotype is rrgngn. The cream MS-S fruit color trait is incompletely dominant over green, as the genotype rrGnGn is cream while rrGngn produces mature fruit from cream to intermediate in color between cream-colored and green fruit. Spine color is pleiotropic with or very tightly linked to the R locus, but heavy netting from PI 165509 appears not to be linked with the orange genotype and is polygenic.


2017 ◽  
Vol 45 (1) ◽  
pp. 49-55
Author(s):  
Arya Widura Rtionga ◽  
Muhamad Syukur ◽  
Rahmi Yunianti ◽  
Dan Sobir

Characters on hypocotyl dan cotyledon are very potential used for effective and efficient morphology marker for some crop plants. However, the information about the inheritance of qualitative and quantitative characters on hypocotyl and cotyledon of chili pepper was not available. The aim of this research was to determine the inheritance of qualitative and quantitative characters on hypocotyl and cotyledon of chili pepper. This research used purple chili pepper (P1 (IPB C20)), green chili pepper (P2 (IPB C2)), F1, F1R, BCP1, BCP2, and F2 populations. Analysis for qualitative characters used mendelian genetics analysis, whereas model genetic prediction for quantitative characters used join scaling test analysis. The result showed that hypocotyl and cotyledon color of chili pepper controlled by single gene. The gene controlling purple color was dominant than the gene controlling green color on hypocotyl, whereas  the gene controlling green color was dominant than the gene controlling purple color on cotyledon. The additive-dominant genetic model with influence of additive-additive and additive-dominant interaction was suitable for hypocotyl length. The additive-dominant genetic model with influence of additive-dominant and dominant-dominant interaction was suitable for hypocotyls diameter. The additive-dominant genetic model with influence of additive-additive and dominant-dominant interaction was suitable for cotyledon width and cotyledon length.  Keywords: genetic model, morfology marker, natural cross-pollination


Genetika ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. 427-432 ◽  
Author(s):  
Emina Mladenovic ◽  
Janos Berenji ◽  
Ksenija Hiel ◽  
Marija Kraljevic-Balalic ◽  
Vladislav Ognjanov ◽  
...  

Bottle gourd [Lagenaria siceraria (Molina) Standl.] is one of the most interesting species in the plant kingdom, due to the diversity of fruit shapes, sizes and ways of use. Warty genotypes are rare compared to non warty genotypes. Considering unusual external appearance of warty fruits, we focused our research on the investigation of its inheritance patterns. By crossing different bottle gourd phenotypes, we studied the mode of inheritance and identified and verified genes responsible for the fruit skin color and warty phenotype segregation. Two parental lines, LAG 70 (with warty fruit of light green color) and LAG 71 (smooth fruit, variegated), F1, F2 and backcrosses populations along with both parents were evaluated. Genetic analysis indicated that warty fruit type is a result of monogenic inheritance, whereby the warty fruit type is dominant (Wt) trait over to the non-warty fruit type (wt). The mode of inheritance of fruit color was controlled by recessive epistasis, with a ratio of 9 variegated (A-, B-), 3 dark green colored (aaB-) and 4 light green colored (aabb) fruits in the F2 generation.


2007 ◽  
Vol 2 (5) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Chiaki Kuroda ◽  
Eriko Nishio

Reaction of 4,5,6,7-tetrahydrobenzofuran derivatives, model compounds of furanoeremophilanes, with p-dimethylamino-benzaldehyde (Ehrlich's reagent) under acidic conditions was studied both on TLC and in a flask. 4-Hydroxy, 4-methoxy, and 4-acetoxy derivatives showed a pink/purple color, while 7-hydroxy, 7-methoxy, and 7-acetoxy derivatives showed a dark green color. The reaction of a 4-oxo derivative was slow showing an orange color on TLC. 7-Oxo derivatives and benzofuran were negative to Ehrlich's test. It was shown that an intermediate cation corresponding to the pink color was generated from both 4- and 7-substituted derivatives except for the oxo-derivatives.


2004 ◽  
Vol 129 (1) ◽  
pp. 112-120 ◽  
Author(s):  
Nazir Mir ◽  
Mauricio Canoles ◽  
Randolph Beaudry ◽  
Elizabeth Baldwin ◽  
Chhatar Pal Mehla

The capacity for 1-methylcyclopropene (1-MCP) to inhibit color change and firmness loss and alter aroma profiles for tomato (Lycopersicon esculentum Mill.) fruit was evaluated as a function of 1-MCP concentration, multiple and continuous applications, and stage of ripeness. In addition, the relationship between external and internal fruit color and firmness was determined. 1-MCP reduced the rate of red color development in fruit of all stages of ripeness. A single application of 1-MCP delayed color development by ≈ days. A second application of 1-MCP 10 days after first treatment additionally delayed color development of mature green fruit by another 8 to 10 days. Continuous 1-MCP application completely inhibited color development of breaker and half-ripe fruit for the duration (34 days) of application, but only partially inhibited firmness loss. When fruit at 50% color development were treated with 1-MCP, gel color development tended to lag behind the external fruit color change compared to nontreated fruit. Some aroma volatiles were affected by 1-MCP applied at the mature green and breaker stages, but the effect was relatively minor; 1-MCP did not affect sugar or titratable acid levels in these fruit. Collectively, the data indicate 1-MCP caused minor shifts in the quality attributes of locule color, aroma, and firmness relative to external color, which may reduce the value of this treatment, but benefits accrued by slowed firmness loss and color development may afford sufficient compensation to make 1-MCP application commercially feasible.


HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1168f-1168
Author(s):  
Sharad C. Phatak ◽  
Jinsheng Liu ◽  
Casimir A. Jaworski ◽  
A. Fazal Sultanbawa

The functional male sterile (fms) eggplant (Solanum melohgena L.) germplasm UGA 1-MS was crossed with two cultivars, `UGA 18 White' and `Florida Market' with normal anthers to derive F1, F2, and BC populations. Functional male sterility (fms) was governed by a single recessive allele. The gene symbol fms is proposed for this male sterile characteristic. The functional male sterility gene was linked to purple fruit color at the X/x locus. Our observations also revealed that the purple or violet color ware not only on the fruit peel, but also on the anthers and leaf buds if the eggplant fruit was purple or violet. In the transmission of parents and progenies of the cross of UGA 1-MS × `UGA 18 White', the purple line on the anther and leaf bud purple color ware tightly associated with fruit purple color. Thus, it is assumed that the allele X controls not only purple fruit, but also the expression of the purple line on the anther and purple leaf bud.


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