LOCUS X07841 4642 bp DNA linear PLN 10-APR-1991
DEFINITION Wheat rDNA 25S-18S intergenic region EcoRI-BamHI fragment.
ACCESSION X07841
VERSION X07841.1
KEYWORDS 18S ribosomal RNA; 25S ribosomal RNA; repetitive sequence;
ribosomal DNA; ribosomal RNA.
SOURCE Triticum aestivum (bread wheat)
ORGANISM Triticum aestivum
Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP
clade; Pooideae; Triticodae; Triticeae; Triticinae; Triticum.
REFERENCE 1 (bases 1 to 4642)
AUTHORS Barker R.F., Harberd N.P., Jarvis M.G., Flavell R.B.
TITLE Structure and evolution of the intergenic region in a ribosomal DNA
repeat unit of wheat
JOURNAL J. Mol. Biol. 201(1), 1-17(1988).
PUBMED 3418693
COMMENT Within the 25S-18S rDNA intergenic spacer 4 repeat families are
present. Family A consitsts of 12 direct repeats of ca. 135 bp,
family B of 3 direct repeats of ca. 150 bp, family C of 2 direct
repeats of ca. 173 bp and family D of 2 repeats of 30 bp lengths.
FEATURES Location/Qualifiers
source 1..4642
/organism="Triticum aestivum"
/mol_type="genomic DNA"
/clone="pTa71"
/db_xref="taxon:4565"
rRNA <1..496
/note="25S ribosomal RNA"
misc_feature 497..4085
/note="intergenic spacer"
repeat_region 567..975
/note="repetitious region B"
repeat_region 990..2775
/note="repetitious region A"
repeat_region 2809..2878
/note="repetitious region D"
repeat_region 3044..3390
/note="repetitious region C"
rRNA 4086..>4642
/note="18S ribosomal RNA"
BASE COUNT 1178 a 1285 c 1331 g 848 t
ORIGIN
1 agcagaattc accaagtgtt ggattgttca cccaccaata gggaacgtga gctgggttta
61 gaccgtcgtg agacaggtta gttttaccct actgatgaca gtgtcgcgat agtaattcaa
121 cctagtacga gaggaaccgt tgattcacac aattggtcat cgcgcttggt tgaaaagcca
181 gtggcgcgaa gcaccgtgtg ccggattatg actgaacgcc tctaagtcag aatccaagct
241 agcatgcgac gcctgcgccc gccgcccgcc ccgacccacg ttaggggcgc ttgcgcaagg
301 gcccgtgcca ttggctaagc cggtccggcc gaagtgccgc ggccggccgc ctcgaagctc
361 ccttcccaac gggcggtggg ctgaatcctt tgcagacgac ttaaatacgc gacggggcat
421 tgtaagtggc agagtggcct tgctgccacg atccactgag atccagcccc atgtcgcacg
481 gattcgtccc tcccccacaa ctttccttca ccaagtaagg ttcgaagatg ccatcaaaat
541 ctgcaccgca aaatcatgag gactagaaat ggctaagtcc cttgtaagac atacccttgg
601 acccaataag gccagtggaa acaacactca aaactatatg tgccgaatgc aaaagatact
661 tggccgattc atgcggatgc cgtcgtcaga ggctacactg ctaagtcatg gtcaaggcaa
721 atggtatagt cccttatatg acatacacaa tcactcaata aggccagtga cgagcacact
781 caaaagtata tgtgccaagt gaacaagata cttgaccgat tcattcggat gccttcatca
841 ggctaaacgg ctatgtcatg gacaagacaa aatggtaaag tcccttgaat gaaatacgta
901 atcactcgat aaggccagtc gcgagcacag tcaaaactat ttgaggcaag tgaccaagat
961 acttcagcga ttcatgtgtg caactcatca caaagacact tacacggacc catgaacggg
1021 ctgtacaggg acacgggaaa gaagtgcttg acatacttca tggacggatg tggacgcgcc
1081 ccattgatca ccaggcaaaa acacttaaag ggagccgtga acgggctgta cgaggacacg
1141 ggaaaaaact ggccgaccgc cgtcgtggac ggaagttgac gcgcgccatg gaaaaccggg
1201 caaaaccacg tacgtggcac acgccgcgta gacggaccct tacacggagc cgtgaacggg
1261 ctgtacgtgg acacgggaaa aaactggccg acggccgtcg tggacggaag ttgacgcgcg
1321 ccatggaaaa ctgggcaaaa ccacgtacgt ggcacacgcc gcgtacacgg acccttacac
1381 ggacccgtga acgggctgta cgtggacacg ggaaaaaact ggcgaacggc cgtcctggac
1441 ggaagtggac gcgcgccatg gaaaactagg caaaaccacg tacgtggcac acgccgcgta
1501 cacggcccct tacacggacc cgtgaacggg ctgtacgtgg acacaggaaa aaagtgcccg
1561 acggccgtcg tggacggaag ttgacgcgcg ccatggaaaa ctgggcaaaa ccacgtacgt
1621 ggcacacgcc gcgtacacgg ccccttacac ggacccgtga acgggctgta cgtggacacg
1681 ggaaaaaagt gcccgacggc cgtcatggac ggaagttgac gcgcgccatg gaaaactggg
1741 caaaaccacg tacgtggcac acgccgcgta cacggaccct tacacggacc cgtgaacggg
1801 ctgtacgtgg acacgggaaa aaagtgcccg acggccgtcg tggacggaag ttgacgcgcg
1861 ccatggaaaa ctgggcaaaa ccacgtacgt ggcacacgcc gcgtacacgg acccttacac
1921 ggagccgtga acgggctgta cgtggacacg ggaaaaaagt gcccgacggc cgtcgtggac
1981 ggaagttgac gcgcgccatg gaaaactggg caaaaccacg tacgtggcac acgccgcgta
2041 cacggaccct tacacggacc ccgtgaacgg gctgtacgtg gacacgggaa aaaagtgccc
2101 gacggccgtc gtggacggaa gttgacgcgc gccatggaaa actgggcaaa accacgtacg
2161 tggcacacgc cgcgtacacg gacccttaca cggaccccgt gaacgggctg tacgtggaca
2221 cgggaaaaaa gtgcccggcg gccgtcgtgg acggaagttg acgcgcgcca tggaaaactg
2281 ggcaaaacca cgtacgtggc acacgccgcg tacacggacc cttacacgga gccgtgaacg
2341 ggctgtacgt ggacacggga aaaaagtgcc cgacggccgt gctggacgga agttgacgcg
2401 cgccatggaa aactgggcaa aaccacgtac gtggcacacg ccgcgtacac ggacccttac
2461 acggaccccg tgaacgggct gtacgtggac acgggaaaaa agtgcccgac ggccgtcgtg
2521 gacggaagtt gacgcgcgcc atggaaaact gggcaaaacc acgtacgtgg cacacgccgc
2581 gtacacggac ccttacacgg agccgtgaac gggctgtacg tggacacggg aaaaaagtgc
2641 ccgacggccg tcgtgaacgg aagttgacgc gcgccatgga aaactgggca aaaccatgta
2701 cgtggcacac gccgcgtaca cggacccgta cacggacccg tgaacgggta tgagaggtcc
2761 gggaaaaaat ggcccataca ccatgcgaac cggctcaaaa ccagctaatg atggtcaaca
2821 aacggtgcca tggcagcgaa aacatgtctc atggcaaaaa aacgctgcca cggcagcgtt
2881 tcaaaacagt gtacccctcc ttcacaaact aagggcaggg gtcccaatgg gggctaaaac
2941 cctcgggtat agtagggagg aggggtcctt cctggtgggc gtacggaaca cgggtgattt
3001 ttcttaggga aaacacccgt gttcacgtac gcccatcctt tcccaacgtt gcctcggatg
3061 tcccgtcgtt atgccatcac gaaggtgttg gcccggtccc gtgtacgtct cgtgagaaat
3121 tctgacccaa cagccgaagg tagctcggga aacaggaaag taccccgttg cgtacacgat
3181 ccgaccgacg gtaaacagtc gcaacgatgt ccctccaatg tcgcctccgg aaaaacgttg
3241 cccctcggtg gcaacgtcat cgctgtcccg gtcccctgta cgtctcaagt gaaattctaa
3301 cccaacagcc gaatgcggct cgggaaacag gaaagtagcc cgtttcgtgc acgataagac
3361 cgtccgacaa cgttgcaccg atgtcccgat aaagttgcct ttggaaaatc gttgcatccg
3421 tagctttatt gctgctggtg tgacacgcgt gatttggcct tgcaggacgc cttcgtgcaa
3481 gtgatcctcc cgtgctatgc atgggcggag gcttggttgg tttgaccgct tgttggctac
3541 taagcgcatg agtagctttg gacccgtgtc tgccggtaga tcccccgttg tactgcggcc
3601 gactaccggc gccgtgtccc gtccctcgtg tggcttcgaa tcgctggatt aatagtgctt
3661 gcgtgctagt acccgaccta cgggaagtgg tgcttcggat aattgttgcc tcgcggcgga
3721 cgcccattgg gtgtgccgct gcggccaaat agcgcttgcg gcgttgcctc gtggggctgg
3781 cacattacgt gcccgttgct atcaaggcaa cctcgctccc gcttttggtc tcggatgctg
3841 ctcacgataa agggtcgtgg ccctttcggt tgcctcgacc cgacccaaag ctctccgaac
3901 tgagaacaac cggaacagga cttgcctcta cctctccaca gttacgtggt aggatacgca
3961 actctctgcg ccgatcctca aggacgatga gctgtgccgc tcaagagcga caaccggccc
4021 ggctgttgcc tctgagtttc cacgaaagtg gaagcgcaga acgatggccg tgctggtagt
4081 caccaaggac gtgctacctg gttgatcctg ccagtagtca tatgcttgtc tcaaagatta
4141 agccatgcat gtgcaagtat gaaccaattt gaactgtgaa actgcgaatg gctcattaaa
4201 tcagttatag tttgtttgat ggtacgtgct actcggataa ccgtagtaat tctagagcta
4261 atacgtgcaa caaaccccga cttctgggag gggcgcattt attagataaa aggctgacgc
4321 gggctctgct cgctgatccg atgattcatg ataactcgac ggatcgcacg gccttcgtgc
4381 cggcgacgca tcattcaaat ttctgcccta tcaactttcg atggtaggat aggggcctac
4441 catggtggtg acgggtgacg gagaattagg gttcgattcc ggagagggag cctgagaaac
4501 ggctaccaca tccaaggaag gcagcaggcg cgcaaattac ccaatcctga cacggggagg
4561 tagtgacaat aaataacaat accgggcgca ttagtgtctg gtaattggaa tgagtacaat
4621 ctaaatccct taacgaggat cc
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