Genetic analysis by interspecific crosses of the tolerance of Drosophila sechellia to major aliphatic acids of its host plant

被引:23
作者
Amlou, M [1 ]
Pla, E [1 ]
Moreteau, B [1 ]
David, JR [1 ]
机构
[1] CNRS, Lab Populat Genet & Evolut, F-91198 Gif Sur Yvette, France
关键词
ecological specialization; hexanoic acid; octanoic acid; interspecific hybrids; barrier to introgression;
D O I
10.1051/gse:19970407
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Toxicity of hexanoic and octanoic acid, ie, the two major aliphatic acids found in ripe fruits of Morinda citrifolia, was measured on adult flies of Drosophila sechellia, D simulans, F1 hybrids and backcrosses. With both acids, tolerance was much higher in D sechellia than in D simulans while F1 and backcross progeny exhibited intermediate characteristics. Tolerance to these two acids in D sechellia appears to be a major mechanism for understanding the ecological specialization of that species to the toxic morinda. Significant differences in tolerance were found between sexes, especially in F1 hybrids. The role of X-linked tolerance genes was, however, not obvious from the backcross generation, and most of the interspecific difference seems to be autosomal and polygenic. Attempts were made to introgress the tolerance of D sechellia into D simulans by selecting with either morinda fruit or pure octanoic acid. Both techniques proved to be unsuccessful. Introgressed genotypes progressively returned to the apparently pure D simulans phenotype and tolerance regressed to the low value typical of that species. This barrier against introgression seems quite similar to the barrier observed in hybrid zones of various animal species.
引用
收藏
页码:511 / 522
页数:12
相关论文
共 38 条
[1]  
BACHLI L, 1981, GENET BIOL DROSOPHIL, V3, P168
[2]   ANALYSIS OF HYBRID ZONES [J].
BARTON, NH ;
HEWITT, GM .
ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, 1985, 16 :113-148
[3]  
CABOT EL, 1994, GENETICS, V137, P175
[4]   ADAPTATION TO ALCOHOLIC FERMENTATION IN DROSOPHILA - A PARALLEL SELECTION IMPOSED BY ENVIRONMENTAL ETHANOL AND ACETIC-ACID [J].
CHAKIR, M ;
PERIDY, O ;
CAPY, P ;
PLA, E ;
DAVID, JR .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1993, 90 (08) :3621-3625
[5]   DIVERSITY AND THE COEVOLUTION OF COMPETITORS, OR THE GHOST OF COMPETITION PAST [J].
CONNELL, JH .
OIKOS, 1980, 35 (02) :131-138
[6]   GENETICS OF MORPHOLOGICAL DIFFERENCES AND HYBRID STERILITY BETWEEN DROSOPHILA-SECHELLIA AND ITS RELATIVES [J].
COYNE, JA ;
RUX, J ;
DAVID, JR .
GENETICAL RESEARCH, 1991, 57 (02) :113-122
[7]   GENETICS AND SPECIATION [J].
COYNE, JA .
NATURE, 1992, 355 (6360) :511-515
[8]  
COYNE JA, 1986, EVOLUTION, V40, P673, DOI 10.1111/j.1558-5646.1986.tb00530.x
[9]   PERSISTENCE OF MALE-STERILITY IN STRAINS ISSUED FROM HYBRIDS BETWEEN 2 SIBLING SPECIES - DROSOPHILA-SIMULANS AND DROSOPHILA-MAURITIANA [J].
DAVID, J ;
BOCQUET, C ;
LEMEUNIER, F ;
TSACAS, L .
JOURNAL OF GENETICS, 1976, 62 (03) :93-100
[10]  
DAVID JEAN, 1965, BULL BIOL FRANCE BELG, V99, P369