Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix
Hybridization between different taxa is likely to take place when adaptive morphological differences evolve more rapidly than reproductive isolation. When studying the phylogenetic relationship between two land snails of different nominal genera, Ainohelix editha and Ezohelix gainesi, from Hokkaido,...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Published: |
Linnean Society
2015
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/34169/ |
| _version_ | 1848794789558878208 |
|---|---|
| author | Morii, Yuta Yokoyama, Jun Kawata, Masakado Davison, Angus Satoshi, Chiba |
| author_facet | Morii, Yuta Yokoyama, Jun Kawata, Masakado Davison, Angus Satoshi, Chiba |
| author_sort | Morii, Yuta |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Hybridization between different taxa is likely to take place when adaptive morphological differences evolve more rapidly than reproductive isolation. When studying the phylogenetic relationship between two land snails of different nominal genera, Ainohelix editha and Ezohelix gainesi, from Hokkaido, Japan, using nuclear internal transcribed spacer and mitochondrial 16S ribosomal DNA, we found a marked incongruence in the topology between nuclear and mitochondrial phylogenies. Furthermore, no clear association was found between shell morphology (which defines the taxonomy) and nuclear or mitochondrial trees and morphology of reproductive system. These patterns are most likely explained by historical introgressive hybridization between A. editha and E. gainesi. Because the shell morphologies of the two species are quite distinct, even when they coexist, the implication is that natural selection is able to maintain (or has recreated) distinct morphologies in the face of gene flow. Future studies may be able to reveal the regions of the genome that maintain the morphological differences between these species. |
| first_indexed | 2025-11-14T19:21:47Z |
| format | Article |
| id | nottingham-34169 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:21:47Z |
| publishDate | 2015 |
| publisher | Linnean Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-341692020-05-04T20:08:55Z https://eprints.nottingham.ac.uk/34169/ Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix Morii, Yuta Yokoyama, Jun Kawata, Masakado Davison, Angus Satoshi, Chiba Hybridization between different taxa is likely to take place when adaptive morphological differences evolve more rapidly than reproductive isolation. When studying the phylogenetic relationship between two land snails of different nominal genera, Ainohelix editha and Ezohelix gainesi, from Hokkaido, Japan, using nuclear internal transcribed spacer and mitochondrial 16S ribosomal DNA, we found a marked incongruence in the topology between nuclear and mitochondrial phylogenies. Furthermore, no clear association was found between shell morphology (which defines the taxonomy) and nuclear or mitochondrial trees and morphology of reproductive system. These patterns are most likely explained by historical introgressive hybridization between A. editha and E. gainesi. Because the shell morphologies of the two species are quite distinct, even when they coexist, the implication is that natural selection is able to maintain (or has recreated) distinct morphologies in the face of gene flow. Future studies may be able to reveal the regions of the genome that maintain the morphological differences between these species. Linnean Society 2015-05 Article PeerReviewed Morii, Yuta, Yokoyama, Jun, Kawata, Masakado, Davison, Angus and Satoshi, Chiba (2015) Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix. Biological Journal of the Linnean Society, 115 (1). pp. 77-95. ISSN 1095-8312 ancestral ancestral hybridization Bradybaenidae phenotypic evolution phylogeny speciation http://onlinelibrary.wiley.com/doi/10.1111/bij.12466/abstract doi:10.1111/bij.12466 doi:10.1111/bij.12466 |
| spellingShingle | ancestral ancestral hybridization Bradybaenidae phenotypic evolution phylogeny speciation Morii, Yuta Yokoyama, Jun Kawata, Masakado Davison, Angus Satoshi, Chiba Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title | Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title_full | Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title_fullStr | Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title_full_unstemmed | Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title_short | Evidence of introgressive hybridization between the morphologically divergent land snails Ainohelix and Ezohelix |
| title_sort | evidence of introgressive hybridization between the morphologically divergent land snails ainohelix and ezohelix |
| topic | ancestral ancestral hybridization Bradybaenidae phenotypic evolution phylogeny speciation |
| url | https://eprints.nottingham.ac.uk/34169/ https://eprints.nottingham.ac.uk/34169/ https://eprints.nottingham.ac.uk/34169/ |