Abstract
This paper details attempts to breed members of the L. saxatilis species complex in the laboratory and to construct interspecific hybrids between them. Success in reciprocal crosses between animals from the type localities of the ‘species’ of Littorina saxatilis (Olivi) and Littorina rudis (Maton) indicates that these two taxa are synonymous. Six of the twelve possible reciprocal hybridisation crosses between the four species (L. saxatilis, L. arcana Hannaford Ellis, L. nigrolineata Gray and L. neglecta Bean) have been attempted, with only one proving successful, that between male L. saxatilis and female L. arcana. This hybrid cross produces viable offspring, although at a lower frequency than either of the parental crosses in the laboratory, while the reciprocal cross has, as yet, proved unsuccessful. Limited work on the F1 hybrids shows them to be inter-fertile and also capable of backcrossing with male L. saxatilis, but not with female L. saxatilis or L. arcana. Details are also given of attempts to find natural hybrids in sympatric populations of the species of the complex, using gel electrophoresis.
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© 1990 Kluwer Academic Publishers
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Warwick, T., Knight, A.J., Ward, R.D. (1990). Hybridisation in the Littorina saxatilis species complex (Prosobranchia : Mollusca). In: Johannesson, K., Raffaelli, D.G., Hannaford Ellis, C.J. (eds) Progress in Littorinid and Muricid Biology. Developments in Hydrobiology, vol 56. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0563-4_9
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DOI: https://doi.org/10.1007/978-94-009-0563-4_9
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