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Ribosomal DNA difference between species A and D of the Anopheles dims complex of mosquitoes from China
Author(s) -
XU JIANG,
QU FENGYI
Publication year - 1997
Publication title -
medical and veterinary entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 82
eISSN - 1365-2915
pISSN - 0269-283X
DOI - 10.1111/j.1365-2915.1997.tb00302.x
Subject(s) - biology , internal transcribed spacer , intraspecific competition , ribosomal dna , interspecific competition , ribosomal rna , concerted evolution , genetics , dna , spacer dna , base pair , nucleic acid sequence , zoology , evolutionary biology , phylogenetics , gene , botany
. Species A and D of the Anopheles dints complex were found in China. Ribosomal DNA second internal transcribed spacers (ITS2) of both species A and D were sequenced and found to be 716 and 710 base‐pairs in length, respectively, with 699c GC content. No evidence of intraspecific variation was detected in the ITS2 sequence of species A, whereas the sequence of species D showed variation at one position in the ITS2. A large number of simple repeat motifs were dispersed throughout the ITS2 sequences. The level of interspecific difference was 5.4% of the nucleotide sequences. Some of the interspecific differences were located in regions with subrepeat structure.