Monitoring the introgression of E genome chromosomes into triticale using multicolor GISH.

Yang, Y.W., Chi, D., Cao, W., Zeng, J., Xue, A.G., Han, F.-P., and Fedak, G. (2015). "Monitoring the introgression of E genome chromosomes into triticale using multicolor GISH.", Caryologia, 68(4), pp. 317-322. doi : 10.1080/00087114.2015.1109925  Access to full text

Abstract

Hybrids were made between triticale (AABBRR) line T182 and a Thinopyrum amphiploid 8801(AABBEE) and progenies advanced up to F6. Multicolor genomic in situ hybridization (McGISH) revealed different ratios of R and E genome chromosomes in each of the lines examined. R and E genome chromosomes were eliminated by F5 in two of the lines studied. The ratios of R:E genome chromosomes varied from 2:8 to 12:2 in other F6 lines. Translocations between R and E genome chromosomes were detected as early as F3. A single wheat/R translocation was detected in one line in F6.

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