A step towards Balkan Capsicum annuum L. core collection: Phenotypic and biochemical characterization of 180 accessions for agronomic, fruit quality, and virus resistance traits

Autor: Vesela Radeva-Ivanova, Amol N. Nankar, Dimitrina Kostova, Ivanka Tringovska, Valentina Ivanova, Gancho Pasev, Velichka Todorova
Rok vydání: 2020
Předmět:
0106 biological sciences
0301 basic medicine
Germplasm
RNA viruses
Leaves
Plant Science
Pathology and Laboratory Medicine
01 natural sciences
Tospovirus
Bunyaviruses
Tobacco mosaic virus
Medicine and Health Sciences
Cultivar
Flowering Plants
Disease Resistance
2. Zero hunger
Microscopy
Multidisciplinary
Plant Anatomy
food and beverages
Eukaryota
Light Microscopy
Balkan Peninsula
Plants
Tobacco Mosaic Virus
Horticulture
Chemistry
Phenotypes
Phenotype
Inflorescence
Tobamoviruses
Medical Microbiology
Viral Pathogens
Physical Sciences
Viruses
Medicine
Pathogens
Capsicum
Tomato Spotted Wilt Virus
Research Article
Fluorescence Recovery after Photobleaching
Science
Quantitative Trait Loci
Plant Pathogens
Biology
Research and Analysis Methods
Microbiology
Plant Viral Pathogens
Fruits
03 medical and health sciences
Phenols
Genetic variation
Pepper
Genetics
Plant breeding
Microbial Pathogens
Mosaic virus
Tobamovirus
Organisms
Chemical Compounds
Genetic Variation
Biology and Life Sciences
15. Life on land
Plant Pathology
Plant Breeding
030104 developmental biology
Fruit
010606 plant biology & botany
Zdroj: PLoS ONE
PLOS ONE
PLoS ONE, Vol 15, Iss 8, p e0237741 (2020)
ISSN: 1932-6203
Popis: Region-specific local landraces represent a germplasm diversity adapted and acclimatized to local conditions, and are ideal to breed for targeted market niches while maintaining the variability of heirloom traits. A collection of 180 pepper accessions, collected from 62 diverse locations across six Balkan countries, were characterized and evaluated for phenotypic and biochemical variation during a multi-year environment. An assortment of 32 agro-morphological, fruit quality, and virus resistance traits were evaluated, and the top 10% accessions were identified. A wide range of trait variation concerning plant architecture, inflorescence and fruit traits, yield and fruit quality was observed, and appreciable variation was noticed. According to hierarchical clustering, six distinct clusters were established based on pre-defined varietal groups. Divergence among accessions for phenotypic and fruit compositional variability was analyzed, and eight principal components were identified that contributed ~71% of the variation, with fruit shape, width, wall thickness, weight, and fruit quality traits being the most discriminant. Evaluation of the response to tobacco mosaic virus (TMV) and pepper mild mottle mosaic virus (PMMoV) showed that 24 and 1 accession were resistant, respectively while no tomato spotted wilt virus (TSWV) resistance was found. Considerable diversity for agro-bio-morphological traits indicates the Balkan pepper collection as good gene sources for pre-breeding and cultivar development that are locally adapted.
Databáze: OpenAIRE
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