Host genotype changes bidirectional to unidirectional cytoplasmic incompatibility in Nasonia longicornis
نویسندگان
چکیده
منابع مشابه
Effects of A and B Wolbachia and host genotype on interspecies cytoplasmic incompatibility in Nasonia.
Wolbachia endosymbionts cause postmating reproductive isolation between the sibling species Nasonia vitripennis and N. giraulti. Most Nasonia are doubly infected with a representative from each of the two major Wolbachia groups (A and B). This study investigates the role of single (A or B) and double (A and B) Wolbachia infections in interspecies cytoplasmic incompatibility (CI) and host genomi...
متن کاملHost genotype determines cytoplasmic incompatibility type in the haplodiploid genus Nasonia.
In haplodiploid species, Wolbachia-induced cytoplasmic incompatibility (CI) can be expressed in one of two ways: as a "conversion" of diploid fertilized eggs into haploid males or as embryonic mortality. Here we describe CI-type variation within the parasitic wasp genus Nasonia and genetically analyze the basis of this variation. We reach four main conclusions: (i) CI is expressed primarily as ...
متن کاملCytoplasmic incompatibility and bacterial density in Nasonia vitripennis.
Cytoplasmically (maternally) inherited bacteria that cause reproductive incompatibility between strains are widespread among insects. In the parasitoid wasp Nasonia, incompatibility results in improper condensation and fragmentation of the paternal chromosomes in fertilized eggs. Some form of genome imprinting may be involved. Because of haplodiploidy, incompatibility results in conversion of (...
متن کاملBidirectional cytoplasmic incompatibility and the stable coexistence of two Wolbachia strains in parapatric host populations.
Wolbachiaare intracellular bacteria which are very widely distributed among arthropods. In many insect species Wolbachiaare known to induce cytoplasmic mating incompatibility (CI). It has been suggested that Wolbachiacould promote speciation in their hosts if parapatric host populations are infected with two different Wolbachiastrains causing bidirectional mating incompatibilities. A necessary ...
متن کاملWolbachia-Induced Unidirectional Cytoplasmic Incompatibility and Speciation: Mainland-Island Model
Bacteria of the genus Wolbachia are among the most common endosymbionts in the world. In many insect species these bacteria induce a sperm-egg incompatibility between the gametes of infected males and uninfected females, commonly called unidirectional cytoplasmic incompatibility (CI). It is generally believed that unidirectional CI cannot promote speciation in hosts because infection difference...
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ژورنال
عنوان ژورنال: Heredity
سال: 2011
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.2011.53