Evolution of herbivory in a carnivorous clade of minnows (teleostei: cyprinidae): effects on gut size and digestive physiology

Physiological and Biochemical Zoology : PBZ
Donovan P GermanDavid H Evans

Abstract

We constructed a phylogeny for 10 minnow species (family Cyprinidae) previously revealed to be members of sister genera with different dietary affinities and used the phylogeny to examine whether the evolution of digestive tract size and physiology is correlated with the evolution of diet in these fishes. We studied a total of 11 taxa: four herbivorous species in the genus Campostoma and six largely carnivorous species in the genus Nocomis, including two populations of Nocomis leptocephalus, the carnivorous Chattahoochee River drainage population and the herbivorous Altamaha River drainage population. Thus, we were able to compare digestive tract size and physiology among sister genera (Campostoma and Nocomis) and among sister taxa (N. leptocephalus Chattahoochee and N. leptocephalus Altamaha) in dietary and phylogenetic contexts. The herbivorous taxa had longer digestive tracts and higher activity of the carbohydrases amylase and laminarinase in their guts, whereas the carnivorous species had higher chitinase activity. Phylogenetic independent-contrast analysis suggested that the evolution of amylase and chitinase activities was correlated with the evolution of diet in these species, whereas trypsin and lipase activities showe...Continue Reading

Citations

Apr 14, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Donovan P German
Jun 30, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Donovan P German
Jul 2, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Donovan P German, Rosalie A Bittong
Jan 8, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Ryan D DayIan R Tibbetts
Oct 19, 2013·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Kelly H KimDonovan P German
Mar 8, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Ryan D DayStephen M Secor
Nov 26, 2013·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·D P GermanM H Horn
Feb 26, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Stuart M LintonJake A Penny
Feb 15, 2011·Annual Review of Physiology·William H KarasovEnrique Caviedes-Vidal
Sep 24, 2014·Fish & Shellfish Immunology·Prabhugouda SiriyappagouderOmkar V Byadgi
Oct 1, 2015·Evolution; International Journal of Organic Evolution·Alexander KotrschalNiclas Kolm
Oct 5, 2010·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Ryan D DayIan R Tibbetts
Oct 27, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Donovan P GermanDavid H Evans
Mar 13, 2014·Molecular Ecology·Kendall D ClementsJ Howard Choat
Aug 5, 2015·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Parth JhaveriDonovan P German
Sep 7, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Erick PereraJuan Miguel Mancera
Jun 14, 2016·Royal Society Open Science·Edward D BurressJonathan W Armbruster
Dec 8, 2016·Journal of Evolutionary Biology·E D BurressJ W Armbruster
Jul 17, 2019·Molecular Biology and Evolution·Hengwu JiaoHuabin Zhao
Sep 17, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Samantha C LeighDonovan P German
Mar 11, 2017·Royal Society Open Science·Chouly OuKirk O Winemiller
Jun 17, 2020·Evolution; International Journal of Organic Evolution·Sophie L ArchambeaultCatherine L Peichel
Mar 25, 2018·Fish Physiology and Biochemistry·Palash Kumar Pal, Saumen Kumar Maitra
Apr 10, 2017·Environmental Monitoring and Assessment·Peter van den Hurk, Dennis C Haney
Aug 12, 2019·Fish Physiology and Biochemistry·F J Toledo-SolísM Saenz de Rodrigáñez
Nov 26, 2011·The Journal of Experimental Biology·Kevin D Kohl, M Denise Dearing

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