Development of multiple disease resistant tomato lines through marker assisted breeding and their evaluation for horticultural traits

Kumar, Ashish; Jindal, S. K.; Dhaliwal, M. S.; Sharma, Abhishek; Kaur, Sukhjeet; Jain, Sandeep

doi:10.1007/s42360-021-00427-y

Indian Phytopathology

2021

DOI: 10.1007/s42360-021-00427-y

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Development of multiple disease resistant tomato lines through marker assisted breeding and their evaluation for horticultural traits

Ashish Kumar

S. K. Jindal

M. S. Dhaliwal

et al.

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2024

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Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures

Koeda,

Kitawaki

2024

Phytopathology®

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The global dissemination of the Israel (IL) and mild (Mld) strains of tomato yellow leaf curl virus (TYLCV) (Family Geminiviridae, genus Begomovirus) is a major threat to tomato production in many regions worldwide. The use of resistant hybrid cultivars bearing the dominant resistance genes Ty-1, Ty-3, and Ty-3a has become a common practice for controlling tomato yellow leaf curl disease (TYLCD) caused by TYLCV. However, TYLCD symptoms have been sporadically observed in resistant cultivars grown in seasons when temperatures are high. In this study, we used TYLCV-resistant cultivars with confirmed presence of Ty-1, which were determined using newly developed allele-specific markers based on polymorphisms within the locus. These Ty-1-bearing resistant tomato plants and susceptible plants were infected with TYLCV and grown at moderate or high temperatures. Under high-temperature conditions, the Ty-1-bearing tomato cultivar Momotaro Hope (MH) infected with TYLCV-IL had severe TYLCD symptoms, which were almost equivalent to those of the susceptible cultivar. However, MH plants infected with TYLCV-Mld were symptomless or had slight symptoms under the same temperature condition. The quantitative analysis of the TYLCV-IL viral DNA content revealed a correlation between symptom development and viral DNA accumulation. Furthermore, under high-temperature conditions, TYLCV-IL caused severe symptoms in multiple commercial tomato cultivars with different genetic backgrounds. Our study provided the scientific evidence for the experientially known phenomenon by tomato growers, and it is anticipated that the global warming, associated with climate change, could potentially disrupt the management of TYLCV in tomato plants mediated by the Ty-1 gene.

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Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures

Koeda,

Kitawaki

2024

Phytopathology®

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Development of multiple disease resistant tomato lines through marker assisted breeding and their evaluation for horticultural traits

Cited by 1 publication

References 25 publications

Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures

Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures

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