|
TRANSLOCATION CHROMOSOMES T |
|
|
TERMINAL TRANSLOCATION WITH CENTROMERIC BREAKPOINT |
|
|
Germplasm: |
ChineseSpring-Imperial |
|
Abbreviation: |
CS-I T1AS .1RL |
|
Species: |
Triticum aestivum |
|
Donor_species: |
Secale cereale cv. Imperial |
|
Type: |
Tranelocation |
|
Translocation_description: |
Terminaltranslocation with centromeric breakpoint |
|
Derived_from: |
Chinese Spring |
|
Chromosome_configuration: |
20"+1"T1AS . 1RL |
|
Chromoeome_number: |
42 |
|
Comment: |
. indicates a break at the centromere. In the example above, the translocation chromosome consists of the short arm of chromosome 1A translocated to the long arm of 1R with the breakpoint at the centromere. |
|
The following example is of an actual translocation line of this type and is how it appears in GrainGenes. |
|
|
Germplasm: |
Chinese Spring-A. intermedium Translocation T4DL . 4Ai#2S |
|
Abbreviation: |
CS-AGAI T4DL. 4Ai#2S |
|
Species: |
Triticum aestivum |
|
Donor_species: |
Agropyron intermedium |
|
Type: |
Translocation |
|
Translocatin_description |
Terminal tranalocation with centromeric breakpoint |
|
Derived_from: |
Chinese Spring |
|
Chromosome_configuration: |
20"+1"T4DL . 4Ai#2S |
|
Chromoeome_number: |
42 |
|
Developed-by: |
D. Wells |
|
Development_site: |
South Dakota State University, |
|
Comment: |
The number sign (#) is used to distinguish between different chromosomes belonging to the same homoeologous group of chromosomes within accessions, as well as between accessions of the same species or cultivar. In this example, the long arm of T. aestivum chromosome 4D (4DL) is translocated with a centromeric breakpoint ( . ) to the short am (S) of an A. intermedium chromosome (4Ai#2S) |
|
TERMINAL TRANSLOCATION WITH NON- CENTROMERIC BREAKPOINT |
|
|
Germplasm: |
Chinese Spring-Imperial Translocation T1AS . 1AL-1RL |
|
Abbreviation: |
CS-I T1AS . 1ALARL |
|
Species: |
Triticum aestivum |
|
Donor_species: |
Secale cereale cv. Imperial |
|
Type: |
Translocation |
|
Translocation_description: |
Terminal transloction with non-centromeric breakpoint |
|
Derived_from: |
Chinese Spring |
|
Chromosome_configuration: |
20"+1"T1AS . 1AL-1RL |
|
Detailed_abbreviation: |
CS-I1AS . 1AL1.4::1.21RL |
|
Chromosome_number : |
42 |
|
Comment: |
- and :: indicate a break and rejoining within the arm. In the example above, the translocation chromosome consists of the short arm of wheat chromosome 1A, a segment of the long arm of 1A with the breakpoint in band 1AL1.4 and a distal segment derived from 1RL with the breakpoint in band 1RL1.2. |