Assessment and suitability of DUS traits to screen potato (Solanum tuberosum L.) genotypes for Phytophthora spp. infection resistance by using phenotypic and molecular (SSR) markers

The present investigation aimed to identify reliable morphological markers that could serve as indicators for Phytophthora infestans Mont. resistance in potato germplasm. A total of 86 potato genotypes were subjected to genetic diversity assessment using simple sequence repeats, followed by a field...

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Veröffentlicht in:Genetic resources and crop evolution 2024, Vol.71 (1), p.199-223
Hauptverfasser: Rachappanavar, Vinaykumar, Kumar, Manish, Kumar, Vinod, Dalamu, Gupta, Satish K.
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container_start_page 199
container_title Genetic resources and crop evolution
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creator Rachappanavar, Vinaykumar
Kumar, Manish
Kumar, Vinod
Dalamu
Gupta, Satish K.
description The present investigation aimed to identify reliable morphological markers that could serve as indicators for Phytophthora infestans Mont. resistance in potato germplasm. A total of 86 potato genotypes were subjected to genetic diversity assessment using simple sequence repeats, followed by a field trial alongside to evaluate resistance responses and morphological characteristics. Two genotypes (LA CHIPPER and J/95–144) exhibited high resistance to late blight (LB), while four genotypes (BR 6609–7, NO–NOVA, MP/99–406, and CP–4174) displayed moderate resistance. The disease response was juxtaposed DUS characters, thus leading to the identification of critical traits (semi-compact to compact foliage, solid stem, angular stem cross-section, no secondary stem coloration, anthocyanin pigmentation on the stem, smooth tuber skin, and white to creamy tuber flesh coloration). These DUS parameters could be utilized for developing high-yielding, LB-resistant potato cultivars in future breeding programs.
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subjects Agriculture
Anthocyanins
Biomedical and Life Sciences
color
Coloration
Crop diseases
Cultivars
Disease resistance
field experimentation
Foliage
Genetic diversity
genetic variation
Genotypes
Germplasm
High resistance
Infections
Late blight
leaves
Life Sciences
Morphology
phenotype
Physical characteristics
Phytophthora infestans
Pigmentation
Plant breeding
Plant Genetics and Genomics
Plant Physiology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Potatoes
Research Article
Research centers
Simple sequence repeats
Solanum tuberosum
Variance analysis
Vegetables
title Assessment and suitability of DUS traits to screen potato (Solanum tuberosum L.) genotypes for Phytophthora spp. infection resistance by using phenotypic and molecular (SSR) markers
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