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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In recent past, conventional breeding programs were relied on for development of new sweetpotato varieties with desired characteristics. These methods however, are hampered with limitations such as taking long time and failure to produce varieties suited to varied geographical zones. This brief reports on efforts to revolutionize these conventional programs …
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Using codominant molecular markers (microsatellites) for paternity identification was investigated in hexaploid sweetpotato [Ipomoea batatas (L.) Lam.]. Two experimental populations (CIP and LAES), each consisting of a progeny of known parentage, were scored for the presence or absence of alleles segregating at IB-316 and IB-318 microsatellite loci. Paternity was assessed …
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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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This presentation by Isabel Roldán-Ruiz covers the following: Markers and breeding Some basic concepts Mutations, DNA-polymorphisms and DNA-markers DNA-marker techniques Some DNA-marker techniques used in the analysis of plant genomes: RAPD, SSR, CAPS, ISSR, AFLP, SNP
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