RAPD-based genetic linkage map of blueberry derived from a cross between diploid species (Vaccinium darrowi and V. elliottii) |
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Authors: | L J Rowland A Levi |
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Institution: | (1) Fruit Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, 20705 Beltsville, MD, USA |
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Abstract: | An initial genetic linkage map for blueberry has been constructed from over 70 random amplified polymorphic DNA (RAPD) markers that segregated 1 1 in a testcross population of 38 plants. The mapping population was derived from a cross between two diploid blueberry plants: the F1 interspecific hybrid (Vaccinium darrowi Camp x V. elliottii Chapm.) and another V. darrowi plant. The map currently comprises 12 linkage groups (in agreement with the basic blueberry chromosome number) and covers a total genetic distance of over 950cM, with a range of 3–30cM between adjacent markers. The use of such a map for identifying molecular markers linked to genes controlling chilling requirement and cold hardiness is discussed. |
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Keywords: | Molecular markers Random amplified polymorphic DNA Polymerase chain reaction |
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