The high molecular weight subunits of wheat Glutenin in 9 giant spike wheat germplasms were determined by electrophoretic analysis. The subunits 7+9 controlled by Glu-Bl exist almost in each germplasm.The subunits con...The high molecular weight subunits of wheat Glutenin in 9 giant spike wheat germplasms were determined by electrophoretic analysis. The subunits 7+9 controlled by Glu-Bl exist almost in each germplasm.The subunits controlled by Glu-Al are null in most of germplasms.The subunits controlled by Glu-Dl are 2+12 in most of them,and 5+10 in some other germplasms.展开更多
Alien chromosomes of twelve giant spike wheat germplasm lines were identified by C-banding, genomic in situ hybridization (GISH), sequence characterized amplified region (SCAR), and random amplified polymorphic DNA (R...Alien chromosomes of twelve giant spike wheat germplasm lines were identified by C-banding, genomic in situ hybridization (GISH), sequence characterized amplified region (SCAR), and random amplified polymorphic DNA (RAPD). All lines showed a chromosome number of 2n = 42, five of them carried both a pair of wheat-rye (Triticum aestivum-Secale cereal) 1BL/1RS translocation chromosomes and a pair of Agropyron intermedium (Ai) chromosomes, three carried a pair of Ai chromosomes only, three others carried a pair of 1BL/1RS chromosomes only, and one carried neither 1BL/1BS nor Ai chromosome. Further identification revealed that the identical Ai chromosome in these germplasm lines substituted the chromosome 2D of common wheat (T aestivum L.), designated as 2Ai. The genetic implication and further utilization of 2Ai in wheat improvement were also discussed.展开更多
文摘The high molecular weight subunits of wheat Glutenin in 9 giant spike wheat germplasms were determined by electrophoretic analysis. The subunits 7+9 controlled by Glu-Bl exist almost in each germplasm.The subunits controlled by Glu-Al are null in most of germplasms.The subunits controlled by Glu-Dl are 2+12 in most of them,and 5+10 in some other germplasms.
文摘Alien chromosomes of twelve giant spike wheat germplasm lines were identified by C-banding, genomic in situ hybridization (GISH), sequence characterized amplified region (SCAR), and random amplified polymorphic DNA (RAPD). All lines showed a chromosome number of 2n = 42, five of them carried both a pair of wheat-rye (Triticum aestivum-Secale cereal) 1BL/1RS translocation chromosomes and a pair of Agropyron intermedium (Ai) chromosomes, three carried a pair of Ai chromosomes only, three others carried a pair of 1BL/1RS chromosomes only, and one carried neither 1BL/1BS nor Ai chromosome. Further identification revealed that the identical Ai chromosome in these germplasm lines substituted the chromosome 2D of common wheat (T aestivum L.), designated as 2Ai. The genetic implication and further utilization of 2Ai in wheat improvement were also discussed.