Chromosome composition of an F2 Triticum aestivum × T. turgidum spp. durum cross analysed by DArT markers and MCFISH
Article
Article Title | Chromosome composition of an F2 Triticum aestivum × T. turgidum spp. durum cross analysed by DArT markers and MCFISH |
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ERA Journal ID | 5177 |
Article Category | Article |
Authors | Eberhard, Friederike S. (Author), Zhang, Peng (Author), Lehmensiek, Anke (Author), Hare, Ray A. (Author), Simpfendorfer, Steven (Author) and Sutherland, Mark W. (Author) |
Journal Title | Crop and Pasture Science |
Journal Citation | 61 (8), pp. 619-624 |
Number of Pages | 6 |
Year | 2010 |
Publisher | CSIRO Publishing |
Place of Publication | Melbourne, Australia |
ISSN | 0004-9409 |
1836-0947 | |
1836-5795 | |
Digital Object Identifier (DOI) | https://doi.org/10.1071/CP10131 |
Web Address (URL) | http://www.publish.csiro.au/nid/40/paper/CP10131.htm |
Abstract | This study has employed multicolour fluorescence in situ hybridisation and Diversity Array Technology markers to determine the segregation of parental A, B and D genome material into the progeny of a cross between a hexaploid bread wheat (Triticum aestivum L. var. 2-49) and a tetraploid durum wheat (T. turgidum L. spp. durum (Desf.) var. Bellaroi). In the F2 progeny from a 2-49/Bellaroi cross, 82 out of 83 F2 plants investigated with DArT analysis had some D genome material, principally as entire chromosomes, while 40 plants had at least one complete copy of all seven D genome chromosomes. Twelve plants containing partial D chromosomes were identified. MCFISH analysis of 26 additional F2 plants of the same cross showed that all 26 plants contained varying amounts of D genome material of which three carried single A-D translocations. In addition two telocentric D genome chromosomes were detected. The D genome content of each line and the breakpoint positions of the three A-D translocations were confirmed with DArT marker analysis. Overall results indicate a random recombination of A and B genome loci from the hexaploid female parent and the tetraploid male parent in this F2 population and a significant retention of the maternal D genome material. This study illustrates that the combined application of the MCFISH and DArT techniques provides a powerful approach for the analysis of crosses between cereal genotypes of different ploidy. |
Keywords | DArT; durum wheat; MCFISH; hexaploid x durum crosses |
ANZSRC Field of Research 2020 | 310803. Plant cell and molecular biology |
300403. Agronomy | |
300101. Agricultural biotechnology diagnostics (incl. biosensors) | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Centre for Systems Biology |
University of Sydney | |
Department of Primary Industries, New South Wales |
https://research.usq.edu.au/item/q00vv/chromosome-composition-of-an-f2-triticum-aestivum-t-turgidum-spp-durum-cross-analysed-by-dart-markers-and-mcfish
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Eberhard_Zhang_Lehmensiek_Hare_Simpfendorfer_Sutherland_CPS_2010_AV.pdf | ||
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