PMID- 23546950 OWN - NLM STAT- MEDLINE DCOM- 20130920 LR - 20130402 IS - 1676-5680 (Electronic) IS - 1676-5680 (Linking) VI - 12 IP - 1 DP - 2013 Mar 11 TI - Molecular cytogenetic characterization of the Aegilops biuncialis karyotype. PG - 683-92 LID - 10.4238/2013.March.11.16 [doi] AB - Aegilops biuncialis can be hybridized with wheat (Triticum spp) and has been used for wheat breeding and genetic studies. The A. biuncialis karyotype (U(b) U(b) M(b) M(b)) was investigated based on three A. biuncialis accessions grown in China. Two pairs of SAT chromosomes were identified as 1U(b) and 5U(b), with a karyotype formula of 2n = 4x = 28 = 14m + 10sm + 4st. Fluorescence in situ hybridization (FISH) and C-banding approaches were used to analyze the A. biuncialis accession chromosomes at the mitotic stage. Based on the C-banding and FISH patterns, all U(b) and M(b) chromosomes could be discriminated simultaneously; the three A. biuncialis accessions exhibited similar patterns, suggesting a common origin. The U(b) genome from A. biuncialis resembled the U genome in the diploid species A. umbellulata, and it may be related to the tetraploid species containing the U genome. The M(b) genome had some differences compared to the M genome in the diploid species A. comosa, and it may be related to the tetraploid species possessing the M genome. A generalized ideogram was proposed for the A. biuncialis genome, which could be useful for standardized and accurate identification of the A. biuncialis karyotype and chromosomes. FAU - Wang, J AU - Wang J AD - Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Zhang, W AU - Zhang W FAU - Zhao, H AU - Zhao H FAU - Li, F R AU - Li FR FAU - Wang, Z G AU - Wang ZG FAU - Ji, J AU - Ji J FAU - Zhang, X Q AU - Zhang XQ FAU - Wang, D W AU - Wang DW FAU - Li, J M AU - Li JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130311 PL - Brazil TA - Genet Mol Res JT - Genetics and molecular research : GMR JID - 101169387 SB - IM MH - Chromosome Banding MH - Chromosomes, Plant/*genetics MH - Diploidy MH - Genome, Plant/*genetics MH - In Situ Hybridization, Fluorescence MH - Karyotype MH - Karyotyping/*methods MH - Poaceae/classification/*genetics MH - Polyploidy MH - Species Specificity EDAT- 2013/04/03 06:00 MHDA- 2013/09/21 06:00 CRDT- 2013/04/03 06:00 PHST- 2013/04/03 06:00 [entrez] PHST- 2013/04/03 06:00 [pubmed] PHST- 2013/09/21 06:00 [medline] AID - gmr2119 [pii] AID - 10.4238/2013.March.11.16 [doi] PST - epublish SO - Genet Mol Res. 2013 Mar 11;12(1):683-92. doi: 10.4238/2013.March.11.16.