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

Author:
Yang, Y.W., Chi, D., Cao, W., Zeng, J., Xue, A., Han, F.P., Fedak, G.
Source:
Caryologia 2015 v.68 no.4 pp. 317-322
ISSN:
2165-5391
Subject:
chromosome translocation, chromosomes, genome, hybrids, in situ hybridization, introgression, monitoring, triticale, wheat
Abstract:
Hybrids were made between triticale (AABBRR) line T182 and a Thinopyrum amphiploid 8801(AABBEE) and progenies advanced up to F ₆. 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 F ₅ in two of the lines studied. The ratios of R:E genome chromosomes varied from 2:8 to 12:2 in other F ₆ lines. Translocations between R and E genome chromosomes were detected as early as F ₃. A single wheat/R translocation was detected in one line in F ₆.
Agid:
4794842