当前位置： SCI文献检索 > PARASITOLOGY RESEARCH期刊下所有文献 > Molecular diversity and coalescent species delimitation of avian haemosporidian parasites in an endemic bird species of South America.

Molecular diversity and coalescent species delimitation of avian haemosporidian parasites in an endemic bird species of South America.

Abstract：

:Haemoproteus spp. and Plasmodium spp. are blood parasites that occur in birds worldwide. Identifying the species within this group is complex, especially in wild birds that present low parasitemia when captured, making morphological identification very difficult. Thus, the use of alternative tools to identify species may be useful in the elucidation of the distribution of parasites that circulate in bird populations. The objectives of this study were to determine the prevalence and parasitemia of the genera Plasmodium and Haemoproteus in Tachyphonus coronatus in the Atlantic Forest, Brazil, and to evaluate the molecular diversity, geographic distribution, and specificity of these parasites based on coalescent species delimitation methods. Microscopic analysis, PCR, cyt b gene sequencing, phylogenetic analysis and coalescent species delimitation using single-locus algorithms were performed (Poisson tree process (PTP) and multi-rate Poisson tree process (MPTP) methods). The analyses were performed in 117 avian host individuals. The prevalence was 55.5% for Plasmodium and 1.7% for Haemoproteus, with a mean parasitemia of 0.06%. Twenty-five Plasmodium and two Haemoproteus lineages were recovered. The MPTP method recovered seven different evolutionarily significant units (ESUs) of Plasmodium and one of Haemoproteus, whereas PTP presented fourteen ESUs of Plasmodium and one of Haemoproteus. The MPTP was more consistent with current taxonomy, while PTP overestimated the number of lineages. These ESUs are widely distributed and have already been found in 22 orders of birds that, all together, inhabit every continent, except Antarctica. The computational methods of species delimitation proved to be effective in cases where the classification of Haemosporida based just on morphology is insufficient.

journal_name

Parasitol Res

journal_title

Parasitology research

authors

Oliveira L,Dias RJP,Rossi MF,D'Agosto M,Santos HA

doi

10.1007/s00436-020-06908-9

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

4033-4047

issue

eissn

0932-0113

issn

1432-1955

pii

10.1007/s00436-020-06908-9

journal_volume

119

pub_type

杂志文章

在线工具

Molecular diversity and coalescent species delimitation of avian haemosporidian parasites in an endemic bird species of South America.