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Journal of Heredity Advance Access published online on April 13, 2006
Journal of Heredity, doi:10.1093/jhered/esj028
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© The American Genetic Association. 2006. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.
Received July 8, 2005
Accepted January 29, 2006

Brief Communication

Inheritance of Gynoecism in Bitter Gourd (Momordica charantia L.)

Dangar Ram 1, Sanjeet Kumar 1 *, Major Singh 1, Mathura Rai 1, and Gautam Kalloo 2

1 From the Indian Institute of Vegetable Research, PB # 5002, PO BHU, Varanasi 221005, India
2 From the Indian Institute of Vegetable Research, PB # 5002, PO BHU, Varanasi 221005, India. G. Kalloo is now at the Krishi Anusandhan Bhawan II, Pusa Campus, New Delhi 110012, India

* To whom correspondence should be addressed.
Sanjeet Kumar, E-mail: sanjeetk1{at}sify.com


  Abstract

The inheritance of sex expression in cucumber (Cucumis sativus) and other cucurbits is well documented; however, the genetics of female sex (gynoecism) expression in bitter gourd (Momordica charantia) has not been described. Inheritance of gynoecism in bitter gourd was studied in a 100% gynoecious line (Gy263B). The F2 and testcross segregation data revealed that gynoecism in Gy263B is under the control of a single, recessive gene. Following the gene nomenclature of cucurbits, it is proposed that the gene symbol, gy-1, be assigned for the expression of gynoecism in bitter gourd.


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