Genome inheritance in populations derived from hexaploid/ tetraploid and tetraploid/hexaploid wheat crosses
Article
Article Title | Genome inheritance in populations derived from hexaploid/ |
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ERA Journal ID | 2621 |
Article Category | Article |
Authors | Padmanaban, Sriram (Author), Sutherland, Mark W. (Author), Knight, Noel L. (Author) and Martin, Anke (Author) |
Journal Title | Molecular Breeding: new strategies in plant improvement |
Journal Citation | 37 (4), pp. 37-48 |
Number of Pages | 12 |
Year | 2017 |
Place of Publication | Netherlands |
ISSN | 1380-3743 |
1572-9788 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11032-017-0647-3 |
Web Address (URL) | http://link.springer.com/article/10.1007/s11032-017-0647-3 |
Abstract | Hexaploid/tetraploid and tetraploid/hexaploid wheat hybrids were established using the hexaploid (Triticum aestivum L.) bread wheat LRC2010-150 and the tetraploid durum wheat (T. turgidum spp. durum) WID802. Thirty F2 progeny from each cross were characterised using Diversity Arrays Technology (DArTseq™) markers to determine whether there are differences between the crosses in the proportion of A, B and D genomic material inherited from each parent. Inheritance of the A and B genome from the tetraploid durum parent varied from 32 to 63% among the 60 lines assessed, and results indicated significant differences between the two F2 populations in the mean overall proportion of chromosomes A and B inherited from each parent. Significant differences were also observed between the crosses in the proportion of chromosomal segments on 2B, 3A, 3B and 4A inherited from the tetraploid parent. The F2 populations also showed significant differences in the average retention of D chromosomes per line with the tetraploid/hexaploid cross retaining a mean of 2.83 chromosomes while the reciprocal cross retained a mean of 1.8 chromosomes per line. A strong negative correlation was observed in individual lines from both populations between the proportion of the A and B genome inherited from the tetraploid durum parent and the retention of the D genome. The implication of these results for the design of efficient crossing strategies between hexaploid and tetraploid wheats is discussed. |
Keywords | DArTseq™, hexaploid/tetraploid, tetraploid/hexaploids, interploidy crosses, pentaploidhybrids . Retention of D chromosomes |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Crop Health |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q404q/genome-inheritance-in-populations-derived-from-hexaploid-tetraploid-and-tetraploid-hexaploid-wheat-crosses
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