Abstract
Hematological parameters can provide key information to an animal health status.However,this information is usually hard to obtain.Here,we described the hematological parameters of Leptodactylus podicipinus in the Brazilian Pantanal.We measured red blood cell morphometrics,erythrogram,and leukogram.We also tested for phylogenetic signal in the erythrogram and leuko-gram of 48 frog species from 15 families,testing if body size explains their variation.Lymphocytes were the most abundant leukocytes(>60%)in L.podicipinus,followed by neutrophils(10%).Given that L.podicipinus is an abundant and widely distributed species in central Brazil,knowing its hematological pattern can help establish a baseline and improve its use as a bioindicator of envir-onmental degradation.Mean corpuscular hemoglobin and value contributed more to the phylo-morphospace of erythrogram,in which Leptodactylus spp.and Hypsiboas raniceps had lower val-ues of these variables,whereas Bufotes viridis and Hyla arborea had high values.The phylogenetic signal was spread throughout the dimensions of the leukogram phylomorphospace.The variables that most contributed to it were total leukocytes counts,lymphocytes,and neutrophils.We also found a moderate phylogenetic signal for both the erythrogram and leukogram.Accordingly,body size accounted for a low proportion of variation in both the leukogram(4.7%)and erythrogram(0.57%).By applying phylogenetic comparative methods to hematological parameters,our results add a new perspective on the evolution of blood cell physiology in frogs.
基金项目
SISBIO provided collecting permit63297-1()
Coordena??o de Aperfei?oamento de Pessoal de Nível Superior—Brasil CAPES)-Finance Code 00CESF received a grant from the Fund()
has been continuously supported by Conselho Nacional de Desenvolvimento Científico e Tecnologico(Grant310058/2020-1)
COhas been continuously supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico(Grant304552/2019-4)