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Tinago, T.; Mwabvu, T.; MacDonald, A. H. (2017). Evidence of multiple divergent mitochondrial lineages within the southern African diplopod genus Bicoxidens Attems, 1928 (Spirostreptida). African Zoology. 52(4): 229-235.
354425
10.1080/15627020.2017.1387504 [view]
Tinago, T.; Mwabvu, T.; MacDonald, A. H.
2017
Evidence of multiple divergent mitochondrial lineages within the southern African diplopod genus Bicoxidens Attems, 1928 (Spirostreptida)
African Zoology
52(4): 229-235
Publication
Two recent studies have suggested that divergent mitochondrial lineages may be present within spirostreptid genera such as Bicoxidens Attems, 1928. Bicoxidens, similar to many other endemic soil invertebrates, exhibits low dispersal capabilities and strict microclimate habitat preferences, attributes that often lead to geographic isolation. Given that prolonged geographic isolation often lays the foundation for population genetic differentiation, genetic divergence and possibly speciation, there was good reason to suspect that Bicoxidens may consist of several distinct lineages. On this basis, the mitochondrial cytochrome c oxidase subunit 1 (COI) was used to reconstruct the phylogeny of Bicoxidens and reveal divergent lineages within the genus. Maximum likelihood and Bayesian inference analyses recovered a paraphyletic Bicoxidens phylogram with divergent lineages present in three species – B. friendi, B. flavicollis and B. brincki – suggesting high genetic diversity within the genus. Bayesian genetic cluster analyses suggested the presence of multiple distinct mitochondrial lineages within the genus with four identified in B. flavicollis alone. It was therefore concluded that the divergent lineages observed among Bicoxidens populations may suggest the presence of hidden species.
South Africa
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2019-08-09 08:27:40Z
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Bicoxidens Attems, 1928 (additional source)
Bicoxidens aridis Mwabvu, 2009 (additional source)
Bicoxidens brincki Schubart, 1966 (additional source)
Bicoxidens flavicollis Attems, 1928 (additional source)
Bicoxidens friendi Mwabvu, 2000 (additional source)
Bicoxidens grandis Lawrence, 1965 (additional source)
Bicoxidens matopoensis Mwabvu, 2007 (additional source)
Bicoxidens nigerrimus Attems, 1928 (additional source)
Bicoxidens nyathi Mwabvu, 2007 (additional source)
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