caa a22 4500 475793900 CHVBK 20180406123718.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1007/s001220051534 doi (NATIONALLICENCE)springer-10.1007/s001220051534 Fixation of translocation 2A·4B infers the monophyletic origin of Ethiopian tetraploid wheat [Elektronische Daten] [T. Kawahara, S. Taketa] Abstract : Analysis of structural chromosomal polymorphism revealed the presence of a previously reported 2A·4B translocation common to all 15 strains of Ethiopian tetraploid wheat examined. Using the C-banding technique, we found two new translocations,T1B·6B and T5B·6B, and a pericentric inversion of chromosome 5A. The C-banding pattern indicated that in all three translocations the breakpoint was located in the centromeric region. Sequential N-banding and genomic in situ hybridization (GISH) confirmed the location of the breakpoint of translocation 2A·4B, and revealed that the breakpoint of another known translocation, 2A-2B, was in the proximal region of 2BL. The fixation of the 2A·4B translocation indicates the monophyletic origin of Ethiopian tetraploid wheat and the presence of a very severe bottleneck effect during its dispersal. Springer-Verlag Berlin Heidelberg, 2000 Key words Tetraploid wheat, Landraces, Ethiopia, Translocation, Inversion nationallicence Kawahara T. Plant Germ-plasm Institute, School of Agriculture, Kyoto University, Mozume, Muko, Kyoto 617-0001, Japan e-mail: kawatai@mbox.kudpc.kyoto-u.ac.jp Tel.: +81-75-921-0652, Fax: +81-75-932-8063, JP aut Taketa S. Research Institute for Bioresources, Okayama University, Kurashiki, Okayama 710-0046, Japan, Present address: Faculty of Agriculture, Kagawa University, Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0795, Japan, JP aut https://doi.org/10.1007/s001220051534 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001220051534 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kawahara T. Plant Germ-plasm Institute, School of Agriculture, Kyoto University, Mozume, Muko, Kyoto 617-0001, Japan e-mail: kawatai@mbox.kudpc.kyoto-u.ac.jp Tel.: +81-75-921-0652, Fax: +81-75-932-8063, JP aut NATIONALLICENCE 700 1- Taketa S. Research Institute for Bioresources, Okayama University, Kurashiki, Okayama 710-0046, Japan, Present address: Faculty of Agriculture, Kagawa University, Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0795, Japan, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer