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Genetic structure of Melanotaenia australis at local and regional scales in the east Kimberley,Western Australia

Phillips, Ryan; Storey, A.W.; Johnson, M.S.

Description

The Kimberley region of Western Australia possesses a poorly studied freshwater fish fauna with high endemism in an aquatic landscape subject to monsoonal floods and dry season isolation. In the first population genetic study of freshwater fish in this region, the authors tested the effects of geographic barriers on genetic structure at multiple spatial scales in east Kimberley populations of the western rainbowfish, Melanotaenia australis, the most widespread and abundant species in the...[Show more]

dc.contributor.authorPhillips, Ryan
dc.contributor.authorStorey, A.W.
dc.contributor.authorJohnson, M.S.
dc.date.accessioned2015-12-10T23:11:54Z
dc.identifier.issn0022-1112
dc.identifier.urihttp://hdl.handle.net/1885/63887
dc.description.abstractThe Kimberley region of Western Australia possesses a poorly studied freshwater fish fauna with high endemism in an aquatic landscape subject to monsoonal floods and dry season isolation. In the first population genetic study of freshwater fish in this region, the authors tested the effects of geographic barriers on genetic structure at multiple spatial scales in east Kimberley populations of the western rainbowfish, Melanotaenia australis, the most widespread and abundant species in the region. Based on allozyme comparisons, hierarchical analysis of FST revealed increasing genetic subdivision with spatial scale. Minimal genetic structure within creeklines demonstrated that wet season dispersal, rather than dry season isolation, determines genetic structure at small scales. At the scale of sub-catchments, a pattern of isolation by distance along creeklines was evident. Genetic subdivision between adjacent river systems was greater between rivers separated by a plateau than by lowlands. This implies greater connectivity of populations in lowland areas and may explain the greater similarity of the east Kimberly freshwater fish fauna with lowlands to the east than with the more rugged regions to the west. Similarly, greater connectivity between lowland populations may account for the on-average larger distribution of lowland Melanotaeniids.
dc.publisherBlackwell Publishing Ltd
dc.sourceJournal of Fish Biology
dc.subjectKeywords: fresh water; isoenzyme; animal; article; Australia; DNA sequence; gene frequency; genetic variability; genetics; geography; population genetics; Smegmamorpha; Animals; Fresh Water; Gene Frequency; Genetic Variation; Genetics, Population; Geography; Isoenz Allozymes; Freshwater fish; Genetic subdivision; Kimberley; Melanotaenia; Western rainbowfish
dc.titleGenetic structure of Melanotaenia australis at local and regional scales in the east Kimberley,Western Australia
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume74
dc.date.issued2009
local.identifier.absfor060411 - Population, Ecological and Evolutionary Genetics
local.identifier.ariespublicationu9511635xPUB859
local.type.statusPublished Version
local.contributor.affiliationPhillips, Ryan, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationStorey, A.W., University of Western Australia
local.contributor.affiliationJohnson, M.S., University of Western Australia
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage437
local.bibliographicCitation.lastpage451
local.identifier.doi10.1111/j.1095-8649.2008.02099.x
local.identifier.absseo960807 - Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
dc.date.updated2016-02-24T12:08:44Z
local.identifier.scopusID2-s2.0-59149104492
local.identifier.thomsonID000262890200006
CollectionsANU Research Publications

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