Alien Introgression in Wheat Cytogenetics, Molecular Biology, and Genomics
© Springer International Publishing Switzerland 2015 133 M. Molnár-Láng et al. (eds.), Alien Introgression in Wheat, DOI 10.1007 ...
134 6.1 Introduction Effi cient production of balanced gametes in diploid organisms depends on the regu- lar bivalent formation ...
135 both in wheat and interspeci fi c hybrids, which has implications in the transfer to wheat of alien genes controlling import ...
136 caused by the defi ciency for chromosome 5B, or about twice as high as the pairing produced by the lack of 3DS (Mello-Sampay ...
137 6.3 Meiotic Phenotype of Ph Mutants The fi rst attempt to isolate meiotic mutants in hexaploid wheat was carried out by trea ...
138 ph1c , in which half of them persists until metaphase I. Pairing correction concerns also the resolution of interlocking pro ...
139 hybrids studied. B–D associations occur somewhat more often than A–B associa- tions in hybrids with rye, Ae. longisima , Ae ...
140 Fig. 6.2 Metaphase I pairing in Giemsa stained cells of wheat × Ae. longissima hybrids. ( a ) Low pairing level in the wild ...
141 6.4 Unravelling the Structure of Loci Ph1 and Ph2 The ph1b deletion covers an intercalary region, in which, the Ph1 locus wa ...
142 I when the C - Ph1 orthologue is silenced in Arabidopsis , which supports C - Ph1 as an excellent ca ndidate for the Ph1 loc ...
143 premeiotic treatment with colchicine (Driscoll et al. 1967 ; Feldman and Avivi 1988 ). It was therefore assumed that the hex ...
14 4 centromere–telomere axis, and homology of both the telomeric and centromeric regions (Dubcovsky et al. 1995 ; Luo et al. 19 ...
145 The homologous synapsis that follows disassembly of SC between homoeolo- gous is expected to be concluded either by extensio ...
146 Quinn ( 1970 ) and Farooq et al. ( 1990a ) compared the number of MI chromosome association in hybrids between A. variabilis ...
147 6.6.2 Ph -Like Genes in Wheat Related Species 6.6.2.1 Ae. speltoides Many studies have rep orted the ability of certain geno ...
148 genes carrying agronomically important traits, such as rust resistance from diverse Aegilops species (Aghaee-Sarbarzeh et al ...
149 et al. 1988 ; Chen et al. 1992 ; Jauhar 1992 ). The availability of addition and substitu- tion lines of the E and P genome ...
150 ( 1964 ) who proposed that B-chromosomes of Ae. mutica suppress homoeologous pairing in T. aestivum × Ae. mutica hyb rids la ...
151 6.6.4 Cytoplasmic Effects The infl uence of the cytoplasm on male fertility as well as several other morphologi- cal traits ...
152 s trict homologous chromosome pairing is believed to be under genetic control. A brief summary of mostly old but some recent ...
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