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Related Experiment Video

Updated: Feb 21, 2026

An Effective Inoculation Method for Phytophthora capsici on Black Pepper Plants
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Multiple genetic resistances in Capsicum spp.

C S Bento1, A G de Souza1, C P Sudré1

  • 1Laboratório de Melhoramento Genético Vegetal, , , Brasil.

Genetics and Molecular Research : GMR
|October 4, 2017
PubMed
Summary

This study identified Capsicum genotypes resistant to bacterial spot, anthracnose, and Pepper yellow mosaic virus. One Capsicum annuum accession showed resistance to all three, valuable for pepper breeding programs.

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Area of Science:

  • Plant Pathology
  • Horticultural Science
  • Genetics

Background:

  • Bacterial spot (BS), anthracnose, and Pepper yellow mosaic virus (PepYMV) significantly impact pepper crop yields.
  • Identifying resistant Capsicum genotypes is crucial for sustainable agriculture and disease management.

Purpose of the Study:

  • To screen 54 Capsicum genotypes for resistance to BS, anthracnose, and PepYMV.
  • To identify potential sources of resistance for breeding programs.

Main Methods:

  • Genotypes were evaluated for resistance using multiple replicates and scoring scales.
  • Disease progress was monitored using area under the disease progress curve and incubation periods.
  • Gower's algorithm and UPGMA clustering were used for genetic analysis.

Main Results:

  • Capsicum frutescens accessions exhibited high susceptibility to all three diseases.
  • Genotypes of C. baccatum var. pendulum, C. annuum, and C. chinense showed resistance to BS and PepYMV.
  • Accession UENF 1381 (C. annuum) demonstrated resistance to all three pathogens.

Conclusions:

  • Specific Capsicum genotypes possess valuable resistance traits for breeding.
  • UENF 1381 (C. annuum) is a promising candidate for developing disease-resistant pepper varieties.