Description and Phylogenetic Relationships of Anhingatrema n. gen. (Digenea: Diplostomidae) with Two New Species from New World Anhingas (Aves: Anhingidae)

Achatz, Tyler J.; Burkman, Clara A; Fecchio, Alan; Pulis, Eric E.; Tkach, Vasyl V.

doi:10.1007/s11686-022-00643-0

Cited by 4 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…cf labda ). In contrast, as previously shown in multiple digenean taxa, cox 1 sequences proved to be much more suitable for differentiation between congeneric species (e.g., Gordy et al, 2017 ; Locke et al, 2018 ; Achatz et al, 2022 , 2023a , b ), in this case Ochoterenatrema spp. (Table 3 ).…”

Section: Discussionmentioning

confidence: 73%

Uncovering further diversity of Ochoterenatrema Caballero, 1943 (Digenea: Lecithodendriidae) in South American bats

Tkach,

Gasperetti,

Fernandes

et al. 2024

Syst Parasitol

Self Cite

View full text Add to dashboard Cite

Ochoterenatrema Caballero, 1943 is a genus of lecithodendriid digeneans that prior to this study included 8 species parasitic in bats in the Western Hemisphere. Species of Ochoterenatrema possess a unique morphological feature in form of the pseudogonotyl on the sinistral side of the ventral sucker. In this study, we describe 2 new species of Ochoterenatrema from bats in Ecuador. The new species are readily differentiated from their congeners by a combination of morphological characters, including the distribution of vitelline follicles, length of oesophagus, sucker ratio and the body shape, among other features. We have generated partial nuclear 28S rDNA and mitochondrial cox1 gene DNA sequences from both new species. The newly obtained sequences were used to differentiate among species and study the phylogenetic interrelationships among Ochoterenatrema spp. The internal topology of the clade was weakly supported, although the cox1 tree was much better resolved than the 28S tree. Comparison of sequences revealed 0–1.2% interspecific divergence in 28S and 3.3–20.5% interspecific divergence in cox1 among Ochoterenatrema spp. The new findings demonstrate that bats in South America likely harbor multiple additional undescribed species of Ochoterenatrema. More extensive sampling from broader geographic and host ranges, especially in North America, should allow for a better understanding of the evolution of host associations and morphological traits of this lineage of lecithodendriid digeneans.

show abstract

Section: Discussionmentioning

confidence: 73%

Uncovering further diversity of Ochoterenatrema Caballero, 1943 (Digenea: Lecithodendriidae) in South American bats

Tkach,

Gasperetti,

Fernandes

et al. 2024

Syst Parasitol

Self Cite

View full text Add to dashboard Cite

show abstract

“…For example, Anhingatrema spp. differ by only 2% in 28S but by13.8% in COI (Achatz et al, 2023a). In previous studies, no intraspecific variation or minimal variation (1 nucleotide) has been detected in 28S sequences of diplostomoideans (e.g., Achatz et al, 2019a, 2021b).…”

Section: Discussionmentioning

confidence: 92%

“…The comparison of sequences from N. annulata and N. serpens demonstrated 2.2% ( 28S ) and 3.7% ( COI ) divergence between these species. Previous studies of diplostomoideans have revealed 0–9.6% ( 28S ) and 3.4–22.3% ( COI ) intrageneric divergence levels in the same fragments of these genes (Achatz et al, 2023a and references therein). Generally, the intrageneric differences of 28S are much lower than those of COI .…”

Section: Discussionmentioning

confidence: 96%