Isoenzymes detect variation in populations of Triatoma brasiliensis (Hemiptera: Reduviidae: Triatominae)

被引:58
作者
Costa, J [1 ]
FreitasSibajev, MGR [1 ]
MarconSilva, V [1 ]
Pires, MQ [1 ]
Pacheco, RS [1 ]
机构
[1] INST OSWALDO CRUZ,DEPT BIOQUIM & BIOL MOL,LAB SISTEMAT BIOQUIM,BR-21045900 RIO JANEIRO,BRAZIL
来源
MEMORIAS DO INSTITUTO OSWALDO CRUZ | 1997年 / 92卷 / 04期
关键词
Triatoma brasiliensis; genetic distances; multilocus enzyme electrophoresis;
D O I
10.1590/S0074-02761997000400002
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
Triatoma brasiliensis is one of the most important vectors of Chagas disease in the semiarid zone Of the northeast of Brazil. Intraspecific morphological and behavioural variation has been reported for different populations. Results for four distinct populations using eight isoenzymes are reported here. The literature describes three subspecies. T. brasiliensis brasiliensis Neiva, 1911; T. brasiliensis melanica Neiva & Lent, 1941 and T. brasiliensis macromelasoma Galvao, 1956. These subspecies differ mainly in their cuticle colour pattern and were regarded as synonyms by Lent and Wygodzinsky (1979). In order to evaluate whether the chromatic pattern is a morphological variation of different melanic forms within T. brasiliensis oi doe to interspecific variation, field collections were performed in localities where these thr-ee subspecies hate been described: Caico (Rio Grande do Norte), the type-locality for T. b. brasiliensis; Petrolina (Pernambuco) for T. b. macromelasoma and Espinosa (Minas Gerais) for T. b. melanica. A fourth distinct chromatic pattern was found in Juazeiro (Bahia). A total of nine loci were studied. Values of Nei's genetic distance (D) were calculated. T. b. brasiliensis and T. b. macromelasoma are the closest populations with a D=0.295. T.b. melanica had a D greater than or equal to 0.537 when compared to the others, a distance in the range of interspecific variation for other triatomine species.
引用
收藏
页码:459 / 464
页数:6
相关论文
共 16 条
[1]  
COSTA J, 1996, REV SOC BRAS MED S1, V29, P129
[2]  
COSTA J, 1993, MEM I O CRUS S1, V88, P249
[3]  
COSTA J, 1996, MEM I O CRUZ S1, V91, P128
[4]  
COSTA J, 1995, MEM I O CRUZ S1, V90, P229
[5]  
DUJARDIN JP, 1985, ANN SOC BELG MED TR, V65, P271
[6]   ISOZYME EVIDENCE OF LACK OF SPECIATION BETWEEN WILD AND DOMESTIC TRIATOMA-INFESTANS (HETEROPTERA, REDUVIIDAE) IN BOLIVIA [J].
DUJARDIN, JP ;
TIBAYRENC, M ;
VENEGAS, E ;
MALDONADO, L ;
DESJEUX, P ;
AYALA, FJ .
JOURNAL OF MEDICAL ENTOMOLOGY, 1987, 24 (01) :40-45
[7]  
GALVAO ARCHIBALDO BELLO, 1955, REV BRASIL MALARIOL E DOENCAS TROP, V7, P455
[8]   ENZYME POLYMORPHISM AMONG TRIATOMA-INFESTANS (HEMIPTERA, REDUVIIDAE) COLONIES [J].
GARCIA, BA ;
BARATA, JMS ;
BLANCO, A .
JOURNAL OF MEDICAL ENTOMOLOGY, 1995, 32 (02) :126-133
[9]   GENETIC-STRUCTURE OF 4 SPECIES OF TRIATOMA (HEMIPTERA, REDUVIIDAE) FROM ARGENTINA [J].
GARCIA, BA ;
CANALE, DM ;
BLANCO, A .
JOURNAL OF MEDICAL ENTOMOLOGY, 1995, 32 (02) :134-137
[10]   ISOZYME VARIABILITY AND DIFFERENTIATION BETWEEN RHODNIUS-PROLIXUS, R-ROBUSTUS AND R-PICTIPES, VECTORS OF CHAGAS-DISEASE IN VENEZUELA [J].
HARRY, M ;
GALINDEZ, I ;
CARIOU, ML .
MEDICAL AND VETERINARY ENTOMOLOGY, 1992, 6 (01) :37-43