Inheritance for ToLCV and EB resistance in tomato using S. habrochaites and S. pimpinellifolium

Authors

  • Ramesh Kumar Singh ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, Uttar Pradesh, India
  • Nagendra Rai ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, Uttar Pradesh, India

Keywords:

Tomato, Interspecific crosses, Resistance, ToLCV, EB, Genetics

Abstract

Two accessions of wild species of tomato, viz. EC-520060 (Solanum habrochaites) and EC-521080 (Solanum pimpinellifolium) have been utilized for introgression of ToLCV and EB resistant gene into 12 susceptible cultivars bearing good yield traits. Most of the crosses of EC-520060 exhibited 13 (resistant): 3 (susceptible) genetic ratio but 'Flora Dade × EC-520060' expressed 3:1 genetic ratio. The crosses of EC-521080 have diverse genetic ratio of 1:2:1, 3:1 and 1:3. In result of inheritance of EB, the crosses of EC-520060 revealed 3:1 genetic ratio, and the crosses of EC-521080 represented 1:3, 1:2:1 and 3:1 genetic ratio. The crosses of EC-520060 and EC-521080 showed additive, dominance × dominance and additive × additive genetic models for both ToLCV and EB diseases. The inheritance among crosses and genetics of variables can be utilized for improvement of resistant tomato. 

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Published

2023-08-26

How to Cite

Singh, R. K. ., & Rai, N. . (2023). Inheritance for ToLCV and EB resistance in tomato using S. habrochaites and S. pimpinellifolium. CURRENT HORTICULTURE, 11(1), 16–21. Retrieved from https://currenthorticulture.com/index.php/CURHOR/article/view/23

Issue

Vol. 11 No. 1 (2023): January-April 2023

Section

Articles

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