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首页> 外文期刊>Genetic Resources and Crop Evolution >Morphological characterization, genetic diversity and population structure of African nightshades (section Solanum L.)
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Morphological characterization, genetic diversity and population structure of African nightshades (section Solanum L.)

机译：非洲夜间遗传多样性，遗传多样性和人口结构（Solanum L.）

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摘要

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.
机译：由于缺乏卓越品种，非洲夜间的生产低于其潜力。通过育种计划开发品种，以便为农民提供优质种子。然而，最近仅启动了对非洲夜莺种质的农艺表现的系统研究，并且该地区的出版物非常稀缺。在这项研究中，我们分析了与包含两种物种的54个条目的农艺性能相关的形态特征：Solanum Villosum和S. scabrum。此外，AFLP标记和新开发的SSR标记用于评估非洲夜间参赛作品中的遗传多样性和分化。分子方差分析在条目中显示出更高的变异。群集分析将条目分为表示两个物种的两个集群。农艺性状分析在参赛作品中显示出显着差异。释放品种和脱盐的遗传多样性与局部品种的遗传多样性相当。此外，当地品种具有较高的等位基因丰富性和比发达的品种更高的独特等位基因，并且可以作为未来种质种质的未来繁殖的有用基因库。

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