Alien Introgression in Wheat Cytogenetics, Molecular Biology, and Genomics
31 Table 2.5 The diploid species of the wheat group (the genera Amblyopyrum , Aegilops , and Triticum ) Genus Species a^ Synonym ...
32 barrel and umbrella types, and in eco-geography, occupying well-defi ned ecological niches. All the species have distinct and ...
33 Eig ( 1929a ) defi ned traits that he considered primitive (ancestral) or advanced in this group (Table 2.6 ). Accordingly, o ...
34 the Ph1 gene in hybrids with allopolyploid wheat (Dvorak 1972 ; Dover and Riley 1972 ). Indeed, based on chromosome pairing i ...
35 of telomeric and subtelomeric tandem repeats (Salina et al. 2006 ), are consistent with this division of section Sitopsis. Br ...
36 later, about 2.5–4.5 (MYA) and Dvorak and Akhunov ( 2005 ) suggested that the divergence time of these species these was abou ...
37 Ae. longissima and Ae. bicornis are closely related, and that Ae. sharonensis is equally close to Ae. bicornis and Ae. longis ...
38 species (as male) and backcrossing of the resulting hybrid(s) with the ancestor of Triticum-Aegilops. Fan et al. ( 2013 ) sug ...
39 the insertion dates of TEs that the majority of differential proliferation of TEs in the B and A genomes of bread wheat (87 a ...
40 supported by the fact that only bivalents were formed at fi rst meiotic metaphase of the polyploids (except that of the autoa ...
41 hybrid between T. turgidum, and Ae. tauschii. They identifi ed six QTLs in Ae. tauschii that are involved in hybrid genome do ...
42 Table 2.8 The allopolyploid species of the wheat group Ploidy level Genus Species a Genome b Genome size c (Mean ± SD of 1C D ...
43 Allopolyploidization , being a radical, rapid mode of speciation , produces a new species in a single step, a novel taxon tha ...
44 Eilam et al. 2008 , 2010 ). Natural wheat and related allopolyploids contain 2–10 % less DNA than the sum of their diploid pa ...
45 of homoeologues in allopolyploid Triticum species while allowing regular pairing of homologous chromosomes (Riley 1960 ; Sear ...
46 microscopic deletion in the middle of chromosome arm 5BL (Jampates and Dvorak 1986 ). Mapping data suggested that Ph1 might e ...
47 uct derived from the combined contribution of the three genomes of hexaploid wheat and thus, exists only at the hexaploid lev ...
48 (Kenan-Eichler et al. 2011 ). A high proportion of microRNAs showed nonadditive expression upon polyploidization, potentially ...
49 transcripts in two lines of synthetic allohexaploid wheat and found that 7 % of the genes had nonadditive expression, while A ...
50 Allopolyploid species undergo structural genomic changes also during the lifetime of the taxon (evolutionary changes) that ge ...
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