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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(9): 1839-1851
DOI: https://doi.org/10.20546/ijcmas.2017.609.227


Sex Manipulation in Cucurbitaceous Vegetables
K.C. Megharaj1*, P.S. Ajjappalavara1, Revanappa1, D.C. Manjunathagowda2 and J.C. Bommesh3
1Department of Vegetable Science, UHS, Bagalkot-587 104, Karnataka, India
2ICAR-DOGR, Rajgurunagar, Pune, Maharashtra–410505, India
3Department of Vegetable Science, IIHR, Hesaraghatta, Bengaluru-560065, Karnataka, India
*Corresponding author
Abstract:

Sex manipulation is attributed to alter the ratio of male to female flowers within the individuals. A wide range of variation in sex forms ranging from primitive hermaphrodite to gynoecious advanced sex form is observed in cucurbitaceous vegetable crops. Sex expression in cucurbitaceae family is regulated by environmental, genetic and hormonal factors. In general, female sex expression is promoted by low temperature and short photoperiod, which may influence the level of endogeneous hormones (ethylene, auxin and GA) which in turn influence the sex expression. Sex inheritance plays an important role in breeding programme. The reduction in sex ratio, stabilizing the gynoecious character and development of stable gynoecious inbred parents is the main objective of cucurbit breeding programs. Identification of sex expression in the initial stage of the crop with the help of biotechnological tools like marker assisted selection (MAS) may be employed. The molecular breeding will also be helpful for studying the mechanism affecting sex expression and to identify the genes governing the sex character in cucurbits.


Keywords: Hermaphrodite, Gynoecious, Cucurbits, Hormones, Sex expression
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How to cite this article:

Megharaj, K.C., P.S. Ajjappalavara, Revanappa, D.C. Manjunathagowda and Bommesh, J.C. 2017. Sex Manipulation in Cucurbitaceous VegetablesInt.J.Curr.Microbiol.App.Sci. 6(9): 1839-1851. doi: https://doi.org/10.20546/ijcmas.2017.609.227