SPECIES COMPOSITION AND INVERSION POLYMORPHISM OF THE ANOPHELES-GAMBIAE COMPLEX IN SOME SITES OF GHANA, WEST-AFRICA

被引:33
|
作者
APPAWU, MA
BAFFOEWILMOT, A
AFARI, EA
NKRUMAH, FK
PETRARCA, V
机构
[1] UNIV ROMA LA SAPIENZA,WHO,COLLABORATING CTR MALARIA EPIDEMIOL,INST PARASITOL,I-00185 ROME,ITALY
[2] UNIV GHANA,NOGUCHI MEM INST MED RES,LEGON,GHANA
[3] MINIST HLTH,EPIDEMIOL UNIT,ACCRA,GHANA
[4] UNIV ROMA LA SAPIENZA,DEPT GENET & MOLEC BIOL,I-00185 ROME,ITALY
关键词
ANOPHELES GAMBIAE; ANOPHELES ARABIENSIS; ANOPHELES MELAS; CYTOGENETICS; CHROMOSOME INVERSION; GHANA;
D O I
10.1016/0001-706X(94)90036-1
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Samples of Anopheles gambiae s.l. were collected from eight localities belonging to four of the five main ecological strata of Ghana. Analysis of ovarian polytene chromosomes revealed the presence of A. gambiae s.s. in all the sites studied, while A, arabiensis was detected only in the extreme northern locality of Navrongo and A, melas in some southern sites. Anopheles arabiensis showed a degree of inversion polymorphism comparable to the one observed in other West African countries. The analysis of the chromosomal polymorphism of A. gambiae s.s. showed the presence of the FOREST form in the rain forest localities and the SAVANNA form in the coastal savanna sites. The MOPTI form occurred sympatrically with the SAVANNA form in the northernmost locality. The possible influence of the presence of Various taxa of the A. gambiae complex and of their intra-specific Variants on malaria Vectorial system is discussed.
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页码:15 / 23
页数:9
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