A Multilocus Approach to Understanding Historical and Contemporary Demography of the Keystone Floodplain Species Colossoma macropomum (Teleostei: Characiformes)

Frontiers in Genetics
Maria D Conceição F SantosIzeni P Farias

Abstract

We studied the natural populations of a flagship fish species of the Amazon, Colossoma macropomum which in recent years has been suffering from severe exploitation. Our aim was to investigate the existence or not of genetic differentiation across the wide area of its distribution and to investigate changes in its effective population size throughout its evolutionary history. We sampled individuals from 21 locations distributed throughout the Amazon basin. We analyzed 539 individuals for mitochondrial genes (control region and ATPase gene 6/8), generating 1,561 base pairs, and genotyped 604 individuals for 13 microsatellite loci obtaining, on average, 21.4 alleles per locus. Mean H E was 0.78 suggesting moderate levels of genetic variability. AMOVA and other tests used to detect the population structure based on both markers indicate that C. macropomum comprises a single and large panmitic population in the main channel of the Solimões-Amazonas River basin, on the other hand localities in the headwaters of the tributaries Juruá, Purus, Madeira, Tapajós, and localities of black water, showed genetic structure. The greatest genetic differentiation was observed between the Brazilian Amazon basin and the Bolivian sub-basin with res...Continue Reading

References

Jan 1, 1985·Journal of Molecular Evolution·M HasegawaT Yano
Apr 12, 1994·Proceedings of the National Academy of Sciences of the United States of America·A Di RienzoN B Freimer
Apr 5, 2001·Proceedings of the National Academy of Sciences of the United States of America·P Beerli, J Felsenstein
Apr 12, 2001·Molecular Ecology·J C Garza, E G Williamson
Nov 28, 2002·Molecular Ecology·I DupanloupL Excoffier
Nov 8, 2006·Mathematical Biosciences·Jukka Corander, Jing Tang
Feb 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Jody Hey, Rasmus Nielsen
Jul 31, 2007·Genetics·Shuichi KitadaHirohisa Kishino
Nov 13, 2007·BMC Evolutionary Biology·Alexei J Drummond, Andrew Rambaut
May 14, 2011·Molecular Ecology Resources·Laurent Excoffier, Heidi E L Lischer
Jul 1, 2008·Molecular Ecology Resources·Robin S Waples, Chi DO
Nov 10, 2012·Ecology and Evolution·Friso P Palstra, Dylan J Fraser
Oct 18, 2013·Molecular Biology and Evolution·Koichiro TamuraSudhir Kumar
Dec 30, 2014·Ecology and Evolution·Alexander I Putman, Ignazio Carbone
Jun 18, 2016·Journal of Fish Biology·R E ReisL A Rocha
Jan 13, 2017·Nature·Xianfeng WangHong-Wei Chiang
Feb 28, 2017·Molecular Ecology Resources·Shuichi KitadaHirohisa Kishino
Jan 1, 1989·Evolution; International Journal of Organic Evolution·William R Rice

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Methods Mentioned

BETA
PCR
genotyping
gene exchange

Software Mentioned

CHECKER
Rare
Spatial Analysis of Molecular Variance ( SAMOVA ) Analysis of ...
IMa
Modeltest
STRUCTURE
BOTTLENECK
R
FinePop
R package Adegenet

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