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These images illustrate results of in situ hybridization with eight

These images illustrate results of in situ hybridization with eight tomato BACs. Putative locations for the BACs are included in the captions. All of these experiments were performed without CISS hybridization. On the basis of these results, two of the BACs (045N22,

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These images illustrate results of in situ hybridization with eight

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  1. These images illustrate results of in situ hybridization with eight tomato BACs. Putative locations for the BACs are included in the captions. All of these experiments were performed without CISS hybridization. On the basis of these results, two of the BACs (045N22, 098L02) appear to contain only single-copy sequences. The other six contain multiple-copy sequences present either predominantly in the pericentromeric heterochromatin of all of the chromosomes (007K09, 098L02, 251G05, 060G11) or at multiple telomeric locations (209L16, 216M19). One of the BACs having multiple-copies sequences in the pericentromeric heterochromatin (177F12) also has a locus of hybridization at the telomere of the long arm of Chromosome 2. We are currently performing additional experiments with these BACs using CISS hybridization with Cot100 tomato genomic DNA to determine whether their single-copy sequences can be located specifically. Stack Lab--April 8,2005

  2. 045N22 (Chromosome 12—Telomere P)

  3. 098L02 (Chromosome 6—Telomere Q)

  4. 007K09 + 251G05 (both Chromosome 6--Centromere)

  5. Same SC spread as previous slide 007K09 251G05

  6. 007K09 (FITC, Chr. 6--Centromere) + 177F12 (TRITC, Chr. 2—Telomere Q) Chr. 2 Arrow indicates label at telomere of long arm of Chromosome 2

  7. Same SC spread as previous slide 007K09 177F12

  8. 251G05 (Chromosome 6- Centromere)

  9. 060G11 (Chromosome 2—Telomere P)

  10. 216M19 (Chromosome 8—Telomere P)

  11. 209L16 (Chromosome 3—Telomere P)

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