TABLE 1.
Genetic stock
|
No. of barley transcripts
|
No. of single-copy transcriptsa
|
No. of multiple-copy transcriptsa
|
|||||||
---|---|---|---|---|---|---|---|---|---|---|
Betzes | CS | 2H | 3H | 4H | 5H | 6H | 7H | |||
+ | − | + | 365 | 344 | 21 | |||||
+ | − | + | 271 | 243 | 28 | |||||
+ | − | + | 265 | 240 | 25 | |||||
+ | − | + | 323 | 301 | 22 | |||||
+ | − | + | 194 | 187 | 7 | |||||
+ | − | + | 369 | 342 | 27 |
Transcript accumulation patterns among Betzes, CS, and the wheat–barley disomic chromosome addition lines were determined on the basis of t-tests (P < 0.001) of transcript signals normalized by robust multichip analysis (RMA) followed by presence (+) or absence (−) test (detection P < 0.001 using microarray analysis suite 5.0) of 22,792 probe sets on the Barley1 Affymetrix GeneChip. See Figure 1 for details on the work flow. CS, Chinese Spring; 2H, 3H, 4H, 5H, 6H, and 7H are the wheat–barley chromosome addition lines carrying barley chromosomes 2(2H), 3(3H), 4(4H), 7(5H), 6(6H), and 1(7H), respectively.
Determination of single- or multiple-copy transcripts was based on specificity of a given transcript to each barley chromosome added to wheat.