| Title: | Introgression between divergent corn borer species in a region of sympatry: Implications on the evolution and adaptation of pest arthropods |
| Author(s): | Wang Y; Kim KS; Guo W; Li Q; Zhang Y; Wang Z; Coates BS; |
| Address: | "State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China. Jilin Academy of Agricultural Sciences, Changchun, China. Iowa State University, Department of Natural Resource Ecology and Management, Ames, IA, USA. Research Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, China. United States Department of Agriculture, Agricultural Research Service, Corn Insects and Crop Genetics Research Unit, Iowa State University, Ames, IA, USA" |
| ISSN/ISBN: | 1365-294X (Electronic) 0962-1083 (Linking) |
| Abstract: | "The Asian corn borer, Ostrinia furnacalis, and European corn borer, O. nubilalis (Lepidoptera: Crambidae), cause damage to cultivated maize in spatially distinct geographies and have evolved divergent hydrocarbons as the basis of sexual communication. The Yili area of Xinjiang Uyghur Autonomous Region in China represents the only known region where O. furnacalis has invaded a native O. nubilalis range, and these two corn borer species have made secondary contact. Genetic differentiation was estimated between Ostrinia larvae collected from maize plants at 11 locations in Xinjiang and genotyped using high-throughput SNP and microsatellite markers. Maternal lineages were assessed by direct sequencing of mitochondrial cytochrome c oxidase subunit I and II haplotypes, and a high degree of genotypic diversity was demonstrated between lineages based on SNP genotypes. Furthermore, historical introgression was predicted among SNP genotypes only at sympatric locations in the Yili area, whereas in Xinjiang populations only O. furnacalis haplotypes were detected and no analogous introgressed genotypes were predicted. Our detection of putative hybrids and historical evidence of introgression defines Yili area as a hybrid zone between the species in normal ecological interactions and furthermore, might indicate that adaptive traits could spread even between seemingly divergent species through horizontal transmission. Results of this study indicate there may be a continuum in the degree of reproductive isolation between Ostrinia species and that the elegance of distinct and complete speciation based on modifications to the pheromone communication might need to be reconsidered" |
| Keywords: | "Adaptation, Physiological/*genetics Animals China DNA, Mitochondrial/genetics Gene Flow Genetic Markers Genotype Haplotypes Hybridization, Genetic Microsatellite Repeats Models, Genetic Moths/*genetics Polymorphism, Single Nucleotide *Sympatry *Zea mays s;" |
| Notes: | "MedlineWang, Yangzhou Kim, Kyung Seok Guo, Wenchao Li, Qiyun Zhang, Yunyue Wang, Zhenying Coates, Brad S eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2017/11/07 Mol Ecol. 2017 Dec; 26(24):6892-6907. doi: 10.1111/mec.14387. Epub 2017 Dec 2" |
