title: Clonal variation in growth plasticity within a Bosmina longirostris population: the potential for resistance to toxic cyanobacteria.
abstract: Many aquatic organisms respond phenotypically, through morphological, behavioral, and physiological plasticity, to environmental changes. The small-size cladoceran Bosminalongirostris, a dominant zooplankter in eutrophic waters, displayed reduced growth rates in response to the presence of a toxic cyanobacterium, Microcystisaeruginosa, in their diets. The magnitude of growth reduction differed among 15 clones recently isolated from a single population. A significant interaction between clone and food type indicated a genetic basis for the difference in growth plasticity. The variation in phenotypic plasticity was visualized by plotting reaction norms with two diets. The resistance of each clone to dietary cyanobacteria was measured as the relative change in growth rates on the "poor" diet compared with the "good" diet. The enhanced resistance to M. aeruginosa in B. longirostris was derived from both the reduced slope of reaction norms and the increased mean growth rates with two diets. The large clonal variation within a B. longirostris population may contribute to local adaptation to toxic cyanobacteria and influence ecosystem function via clonal succession.
authors.affiliation: School of Life Science, East China Normal University, Shanghai, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Jiang
authors.forename: Qingmei
authors.initials: Q
authors.lastname: Li
authors.forename: Huishuang
authors.initials: H
authors.lastname: Liang
authors.forename: Shiye
authors.initials: S
authors.lastname: Zhao
authors.forename: Lihua
authors.initials: L
authors.lastname: Zhang
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Zhao
authors.forename: Liqiao
authors.initials: L
authors.lastname: Chen
authors.forename: Wei
authors.initials: W
authors.lastname: Yang
authors.forename: Xingyu
authors.initials: X
authors.lastname: Xiang
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D033361:Cladocera / Q000235:genetics / Q000254:growth & development* / Q000382:microbiology* / Q000502:physiology; D004435:Eating; D017753:Ecosystem; D014644:Genetic Variation; D046931:Microcystis / Q000502:physiology*; D010641:Phenotype
references.citation: Trends Ecol Evol. 2008 Jan;23(1):38-44
references.pmid: 18006185
references.citation: Ecology. 2007 Aug;88(8):1932-9
references.pmid: 17824423
references.citation: Trends Ecol Evol. 2001 Apr 1;16(4):191-198
references.pmid: 11245942
references.citation: Oecologia. 2013 May;172(1):11-20
references.pmid: 23053237
references.citation: Toxicon. 2010 Jun 15;55(7):1244-54
references.pmid: 20132836
references.citation: Anim Behav. 2000 May;59(5):929-941
references.pmid: 10860520
references.citation: J Exp Biol. 2012 Aug 15;215(Pt 16):2795-805
references.pmid: 22837451
references.citation: Environ Pollut. 2013 Jul;178:142-6
references.pmid: 23570781
references.citation: BMC Physiol. 2010 May 04;10:6
references.pmid: 20441581
references.citation: Trends Ecol Evol. 2012 Oct;27(10):547-60
references.pmid: 22819306
references.citation: J Exp Biol. 2012 Jun 15;215(Pt 12):2051-9
references.pmid: 22623193
references.citation: Mol Ecol. 2012 Oct;21(19):4898-911
references.pmid: 22943151
references.citation: Environ Pollut. 2006 Oct;143(3):513-8
references.pmid: 16448731
references.citation: Evol Appl. 2012 Feb;5(2):168-82
references.pmid: 25568039
references.citation: Nature. 2000 Jan 6;403(6765):74-7
references.pmid: 10638754
references.citation: Evolution. 2001 Nov 11;55(11):2203-14
references.pmid: 11794781
references.citation: Trends Ecol Evol. 2005 Dec;20(12):685-92
references.pmid: 16701458