title: Chromosomal inversions among insecticide-resistant strains of Anopheles stephensi Liston, a malaria mosquito.
abstract: Polytene chromosomes were prepared from the ovarian nurse cells of semi-gravid females of ten insecticide-resistant strains of Anopheles stephensi. Altogether, 16 heterozygous paracentric inversions, namely b/+ (11D-16C) in alphamethrin; i/+ (14B-18A) and h/+ (27B-28A) in DDT; j/+ (14A-16B) in chlorpyrifos; k/+ (11D-16B) in cyfluthrin; l/+ (11A-16C) in deltamethrin; m/+ (14B-15C) and e/+ (32A-33B) in bifenthrin; n/+ (12D-14B), f/+ (33A-36A) and g/+ (33C-34A) in propoxur; o/+ (11A-12D), h/+ (37A-37C) and i/+ (31C-32C) in temephos; d/+ (33D-35C) in carbofuran and a/+ (41C-43B) in neem strains, were reported. No inversions were observed in X chromosome so far. The frequency of inversions in different insecticides was found to be highest in the 2R arm, followed by the 3R arm. Such inversions were not reported in the corresponding susceptible strains or in the parental stocks.
authors: Centre for Applied Genetics, Bangalore University, J. B. Campus, Bangalore, 560056, India, shetty_nj@yahoo.co.in.
authors: N J
authors: NJ
authors: Shetty
authors: T P N
authors: TP
authors: Hariprasad
authors: D
authors: D
authors: Sanil
authors: T
authors: T
authors: Zin
mesh_terms: D000818:Animals; D000852:Anopheles / Q000187:drug effects* / Q000235:genetics*; D007446:Chromosome Inversion; D003582:Cytogenetics / Q000379:methods; D005260:Female; D007305:Insecticide Resistance; D007306:Insecticides / Q000494:pharmacology*; D059645:Mutation Rate; D010053:Ovary / Q000166:cytology
chemical_list: D007306:Insecticides
references: Bull Entomol Res. 2013 Oct;103(5):547-54
references: 23521773
references: Bull World Health Organ. 1956;15(3-5):425-35
references: 13404430
references: Malar Res Treat. 2010;2010:502824
references: 22332021
references: PLoS One. 2010 May 12;5(5):e10592
references: 20485676
references: Trans R Soc Trop Med Hyg. 1979;73(5):483-97
references: 394408
references: Trends Ecol Evol. 2004 Sep;19(9):482-8
references: 16701311
references: Nature. 2007 Oct 18;449(7164):909-12
references: 17943130
references: Bull World Health Organ. 1957;16(4):859-64
references: 13472432
references: Am J Trop Med Hyg. 1999 Oct;61(4):618-24
references: 10548297
references: Bull World Health Organ. 1963;28(1):77-81
references: 14166989
references: BMC Evol Biol. 2011 Apr 07;11:91
references: 21473772
references: J Am Mosq Control Assoc. 1987 Mar;3(1):84-6
references: 3504898
references: J Med Entomol. 2002 Jul;39(4):568-73
references: 12144286
references: Genetics. 1996 Jan;142(1):179-87
references: 8770595
references: Bull World Health Organ. 1958;19(2):297-301
references: 13585076
references: Nat Rev Genet. 2008 Jun;9(6):421-32
references: 18463665
references: Parassitologia. 1973 Apr-Aug;15(1):129-36
references: 4788354
references: J Am Mosq Control Assoc. 1995 Jun;11(2 Pt 1):238-40
references: 7595453
references: Science. 2002 Nov 15;298(5597):1415-8
references: 12364623
references: Science. 1978 Jun 16;200(4347):1303-4
references: 663614
references: Mol Ecol. 2010 Jan;19(2):325-37
references: 20015143
references: Genetics. 2001 Oct;159(2):581-8
references: 11606535
references: Bull World Health Organ. 1974;50(3-4):299-306
references: 4548394
references: Science. 2002 Oct 4;298(5591):115-7
references: 12364784
references: Genetics. 1996 Jun;143(2):941-52
references: 8725240
references: Bull World Health Organ. 1959;20(1):63-74
references: 13638790
references: J Med Entomol. 2006 Sep;43(5):861-6
references: 17017220
references: Med Vet Entomol. 1987 Jan;1(1):81-8
references: 2980962
references: Med Vet Entomol. 1987 Jul;1(3):265-71
references: 2979540