Table 1.

BLAST-Based Categorization of HRCot, MRCot, and SLCot Clonesu

BLASTcategories[i] Subcategories[i] HRCot MRCot St.Cot Ref./Acc.[ii]
No. % No. % No. %
No significant hit9035.619948.733967.9
Chloroplast DNA00.04110.051.0
Mitochondrial DNA00.000.010.2
rDNA18S-5.8S-26S rDNA228.7358.691.8Many refs.
5S rDNA20.800.000.0Many refs.
Centromeric repentSorghum, pHind1220.841.000.0 Miller et al. 1998a
Sorghum, pHind2200.010.200.0 Miller et al. 1998a
Sorghum, pSau3A941.610.200.0 Jiang et al. 1996
Sorghum, pSau3A1031.200.000.0 Miller et al. 1998b
Sorghum, CEN3810.400.000.0 Zwick et al. 2000
Retroelement[iii] CACTA-type element/TNP-2 gene00.020.510.2 He et al. 2000
Sorghum Leviathan10.451.200.0U07815, U07816
Sorghum, Candystripe-120.800.000.0 Chopra et al. 1999
Sorghum. Retrosor-210.410.230.6 AF061282
Sorghum. Retrosor-63413.471.700.0 AF061282
Barley, cereba polyprotein pseudogene00.010.200.0 Presting et al. 1998
Rice, gypsy-like integrase gene00.030.700.0 AF244793
Maize, rev. tra./integr. pseudogene00.010.200.0 AF030633
Sorghum, putative LTR10.400.000.0 AF061282
MITE[iii] Putative MITE in sugarcane ubi9 gene00.030.700.0 AF093505
Putative MITE in sorghum kafirin BAC00.000.010.2 AF061282
Other dispersed repeat[iii] PRBM-1-related repeat10.400.000.0 Turcich et al. 1996
Sorghurn HCSR-1 repeat00.000.010.2 AF061282
Sorghum HCSR-7 repeat20.800.000.0 AF061282
Johnsongrass XSR3 repeat[iv] 00.010.200.0 X54624
Johnsongrass XSR6 repeat[iv] 10.400.000.0 X54625
Sorghum, putative dispersed repeat10.420.500.0 AF114171
Characterized geneRice, bZIP DNA-binding factor00.000.010.2 U04295
Rice, monosaccharide transporter 100.000.010.2 AB052883
Barley, cp33Hv protein00.000.010.2 AJ224325
Ice plant protein kinase00.000.010.2 Z30331
Maize, peroxidase gene00.000.010.2 AJ401276
Sorghum, NADPH-dependent reductase00.000.010.2 AF010283
Rice, OsNAC4 gene00.010.200.0 AR028183
Canola, FCA gene00.010.200.0 AJ237848
Uncertain character[iii] 41.671.730.6
Repetitive EST4919.4276.6112.2
Ambiguous EST114.3112.7234.6
Unique EST218.35513.49619.2
Total253100409100499100

[i] Clones have been placed into 13 BLAST“categories” according to Figure 3. Some BLASTcategories have been further divided into “subcategories.” For each Cot library, the number (#) and percentage (%) of clones in aBLAST category/subcategory are given.

[ii] A literary reference (Ref.) or GenBank Accession number (Acc.) is given for the sequence or sequences in a subcategory.

[iii] Cot clones categorized as “Retroelements,” “MITEs,” and “Other dispersed repeats” collectively constitute “dispersed repeat sequences.”

[iv] Johnsongrass (Sorghum halepenese Pers.), an extremely aggressive weed, appears to be an interspecific hybrid descendant (autoallotetraploid) of S. bicolor and S. propinquum (Paterson et al. 1995).

[v] Genomic sequence of uncertain character.