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Tag Archives: Genetic diversity

Diversity analysis of sweet potato (Ipomoea batatas [L.] Lam) germplasm from Burkina Faso using morphological and simple sequence repeats markers

Collecting and characterizing plant material is a basic component of crop improvement, and diversity has long been seen as vital for rational management and use of crops. Thirty (30) morphological characters and thirty (30) simple sequence repeat (SSR) markers were used to assess the diversity among 112 sweet potato (Ipomoea batatas …

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Genetic diversity in sweetpotato [Ipomoea batatas (L.) Lam.] in relationship to geographic sources as assessed with RAPD markers

Available evidence shows that sweetpotato originated from either Central or South American lowlands with subsequent dispersal to North America, Europe, Africa, Asia and the pacific islands. A total of 71 polymorphic RAPD molecular markers were used to assess the genetic relationships amongst 74 sweetpotato varieties originating from a total of …

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Analysis of genetic diversity with molecular markers

Genetic Diversity is the foundation of Breeding. In this presentation by Isabel Roldán-Ruiz, the following topics are discussed: Genetic variation and population genetics Concept of population Hardy-Weinberg principle Questions addressed by population geneticists and breeders Forces that act on genetic diversity in natural and selected populations Quantifying genetic variation Calculating genetic …

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Genetic diversity and relationships of sweetpotato and its wild relatives in Ipomoea series Batatas (Convolvulaceae) as revealed by inter-simple sequence repeat (ISSR) and restriction analysis of chloroplast DNA

Genetic diversity and relationships of 40 accessions of Ipomoea, representing ten species of series Batatas, were examined using ISSR markers and restriction-site variation in four non-coding regions of chloroplast DNA. A total of 2071 ISSR fragments were generated with 15 primers in these accessions and, on average, 52 bands per …

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Sweetpotato breeding for northeastern Uganda: Farmer varieties, farmer-participatory selection, and stability of performance

Between 1999 and 2001, the author conducted various studies, primarily in northeastern Uganda, aimed at rapidly assessing the potential of farmer varieties of sweetpotato (Ipomoea batatas) from northeastern Uganda in contributing to the varietal improvement programme in Uganda. These studies included: (i) collection of germplasm (farmer varieties) and farmer knowledge …

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