A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
27149933
DOI
10.1111/evo.12940
Knihovny.cz E-resources
- Keywords
- Behavioral sterility *, hybrid incompatibility *, sex chromosomal-autosomal incompatibility *, sex chromosome *, unidirectional sterility *,
- MeSH
- Phenotype MeSH
- Genetic Linkage MeSH
- Hybridization, Genetic MeSH
- Chromosome Mapping MeSH
- Reproductive Isolation * MeSH
- Sexual Behavior, Animal * MeSH
- Spodoptera genetics physiology MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- United States MeSH
In the fall armyworm, Spodoptera frugiperda (Lepidoptera, Noctuidae), two sympatric strains have been recognized that have been termed corn strain (C) and rice strain (R), referring to their most common host plants. Both strains are reproductively isolated via a distinct prezygotic barrier as well as via an intriguing postzygotic phenomenon: when R females have mated with C males, the resulting RC hybrid females exhibit dramatically reduced fertility independent of their mating partner. Here, we demonstrate that the reduced fertility is caused by the fact that these females refrain from mating, that is, females are behaviorally sterile. We identified a Z-chromosomally linked sterility locus that is most likely incompatible with yet to be identified autosomal (or cytoplasmic) factors, leading to the observed sexual abstinence. Within-chromosome mapping revealed the sterility locus to be located in an area of strongly reduced interstrain recombination.
References provided by Crossref.org
Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera
Dryad
10.5061/dryad.38689
