Morphological characterization, genetic diversity and population structure of African nightshades (section Solanum L.)
| Autor: | Mary Abukutsa-Onyango, Thomas Debener, F. F. Dinssa, Traud Winkelmann, Regina Ronoh, Marcus Linde |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Germplasm African nightshade Genetic diversity food and beverages Plant Science Biology biology.organism_classification 01 natural sciences Analysis of molecular variance Solanum villosum 03 medical and health sciences 030104 developmental biology Agronomy Genetics Amplified fragment length polymorphism Cultivar Gene pool Agronomy and Crop Science Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Genetic Resources and Crop Evolution. 66:105-120 |
| ISSN: | 1573-5109 0925-9864 |
| Popis: | The production of African nightshade is below its potential due to a lack of superior varieties. The development of varieties through breeding programmes has been initiated in order to supply farmers with quality seeds. However, systematic studies on the agronomic performance of African nightshade germplasm have been started only recently, and publications in this area are very scarce. In this study, we analysed morphological traits relevant for the agronomic performance of 54 entries comprising two species: Solanum villosum and S. scabrum. In addition, AFLP markers and newly developed SSR markers were used to assess genetic diversity and differentiation in the African nightshade entries. An analysis of molecular variance showed higher variation within than among entries. A cluster analysis grouped the entries into two clusters representing the two species. The analysis of agronomic traits revealed significant differences among entries. The genetic diversity of the released cultivars and accessions was comparable to but lower than that of the local cultivars. Additionally, the local cultivars had higher allelic richness and a larger number of unique alleles than did the developed cultivars and could serve as a useful gene pool for future breeding of superior germplasm. |
| Databáze: | OpenAIRE |
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