TY - JOUR
T1 - First record of Litomosoides pardinasi (Nematoda: Onchocercidae) in native and exotic rodents from Chile
AU - Landaeta-Aqueveque, Carlos
AU - Notarnicola, Juliana
AU - Correa, Juana P.
AU - Yáñez-Meza, Andrea
AU - Henríquez, Analía
AU - Cattan, Pedro E.
AU - Botto-Mahan, Carezza
AU - Torres-Pérez, Fernando
N1 - Funding Information:
The authors wish to thank Maria Cristina Estivariz from CEPAVE for the drawings and Eileen Smith for editorial support. This work was supported by the Conicyt Ph. D. scholarships awarded to C.L. (number 24110058) and J.P.C. (AT-24100028), and Fondecyt grants awarded to P.E.C (1070960), C.B. (11090086) and F.T.P. (1110664). JN is a member of Conicet.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - We report the first record of Litomosoides pardinasi in native and exotic rodents from Chile. Litomosoides pardinasi, described in the Argentine Patagonia parasitizing Phyllotis xanthopygus and Oligoryzomys longicaudatus, was found in Chile parasitizing the peritoneal and thoracic cavities of O. longicaudatus (prevalence (P)= 18.9%, mean intensity (MI)= 57.3) and Phyllotis darwini (P= 4.2%, MI= 10), and in the peritoneal cavity of Rattus rattus (P= 1.24%; MI= 22.5). Total P in native rodents from Chile was significantly lower than in Argentina, while the total MI was higher. Prevalence and MI of L. pardinasi in O. longicaudatus from Chile and Argentina showed non-significant differences; prevalence in P. darwini from Chile was significantly lower than in P. xanthopygus from Argentina and than in Chilean O. longicaudatus. Our results, together with those from Argentina, support the hypothesis that L. pardinasi is well established in O. longicaudatus, but seems to be recently acquired by P. darwini and the exotic R. rattus. Considering the known host distribution of Litomosoides species among the sigmodontines, our results also support the hypothesis that L. pardinasi first colonized the Oryzomyini tribe and later, by different phenomena of host-switching, colonized the Phyllotini tribe and the exotic R. rattus.
AB - We report the first record of Litomosoides pardinasi in native and exotic rodents from Chile. Litomosoides pardinasi, described in the Argentine Patagonia parasitizing Phyllotis xanthopygus and Oligoryzomys longicaudatus, was found in Chile parasitizing the peritoneal and thoracic cavities of O. longicaudatus (prevalence (P)= 18.9%, mean intensity (MI)= 57.3) and Phyllotis darwini (P= 4.2%, MI= 10), and in the peritoneal cavity of Rattus rattus (P= 1.24%; MI= 22.5). Total P in native rodents from Chile was significantly lower than in Argentina, while the total MI was higher. Prevalence and MI of L. pardinasi in O. longicaudatus from Chile and Argentina showed non-significant differences; prevalence in P. darwini from Chile was significantly lower than in P. xanthopygus from Argentina and than in Chilean O. longicaudatus. Our results, together with those from Argentina, support the hypothesis that L. pardinasi is well established in O. longicaudatus, but seems to be recently acquired by P. darwini and the exotic R. rattus. Considering the known host distribution of Litomosoides species among the sigmodontines, our results also support the hypothesis that L. pardinasi first colonized the Oryzomyini tribe and later, by different phenomena of host-switching, colonized the Phyllotini tribe and the exotic R. rattus.
KW - Filarioid
KW - Host-switching
KW - Nematodes
KW - Oligoryzomys
KW - Phyllotis
KW - Rattus
KW - Sigmodontine rodents
UR - http://www.scopus.com/inward/record.url?scp=84913538422&partnerID=8YFLogxK
U2 - 10.7550/rmb.44711
DO - 10.7550/rmb.44711
M3 - Article
AN - SCOPUS:84913538422
SN - 1870-3453
VL - 85
SP - 1032
EP - 1037
JO - Revista Mexicana de Biodiversidad
JF - Revista Mexicana de Biodiversidad
IS - 4
ER -