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      A genetic linkage map of grape, utilizing Vitis rupestris and Vitis arizonica.

      TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
      Base Sequence, Chromosome Mapping, Chromosomes, Plant, genetics, Crosses, Genetic, DNA Primers, DNA, Plant, isolation & purification, Genetic Markers, Genome, Plant, Random Amplified Polymorphic DNA Technique, Repetitive Sequences, Nucleic Acid, Vitis

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          Abstract

          A genetic linkage map of grape was constructed, utilizing 116 progeny derived from a cross of two Vitis rupestris x V. arizonica interspecific hybrids, using the pseudo-testcross strategy. A total of 475 DNA markers-410 amplified fragment length polymorphism, 24 inter-simple sequence repeat, 32 random amplified polymorphic DNA, and nine simple sequence repeat markers-were used to construct the parental maps. Markers segregating 1:1 were used to construct parental framework maps with confidence levels >90% with the Plant Genome Research Initiative mapping program. In the maternal (D8909-15) map, 105 framework markers and 55 accessory markers were ordered in 17 linkage groups (756 cM). The paternal (F8909-17) map had 111 framework markers and 33 accessory markers ordered in 19 linkage groups (1,082 cM). One hundred eighty-one markers segregating 3:1 were used to connect the two parental maps' parents. This moderately dense map will be useful for the initial mapping of genes and/or QTL for resistance to the dagger nematode, Xiphinema index, and Xylella fastidiosa, the bacterial causal agent of Pierce's disease.

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