Nine biomes and nine challenges for the conservation genetics of Neotropical species, the case of the vulnerable giant anteater (Myrmecophaga tridactyla)

Miranda, Flávia Regina; Machado, Arielli Fabrício; Lara, Camila Clozato; Silva, Sofia

doi:10.1007/s10531-022-02461-2

Cited by 1 publication

(1 citation statement)

References 127 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the 15 species with the highest copy number ( Figure 3 ; Table S1 ), eight are endemic to the Neotropical region: D. mojavensis , D. sturtevanti , D. willistoni , D. paulistorum , D. navojoa , and D. buzzatii , D. tropicalis , and D. montana (listed from the highest to the lowest copy number). In fact, the heterogeneity found across the Neotropical region provides innumerous distinct environments, challenging the survival of species ( Miranda et al, 2022 ). Such environments also impact genomes, as expanding into new areas may relieve the epigenetic silencing or control of TEs, leading to their mobilization and amplification ( Gregory, 2001 ; Rebollo et al, 2010 ; Antoniolli et al, 2023 ).…”

Section: Discussionmentioning

confidence: 99%

Horizontal transfer and the widespread presence of Galileo transposons in Drosophilidae (Insecta: Diptera)

Antoniolli,

Pita,

Deprá

et al. 2023

Genet. Mol. Biol.

View full text Add to dashboard Cite

Galileo is a transposon notoriously involved with inversions in Drosophila buzzatii by ectopic recombination. Although widespread in Drosophila , little is known about this transposon in other lineages of Drosophilidae. Here, the abundance of the canonical Galileo and its evolutionary history in Drosophilidae genomes was estimated and reconstructed across genera within its two subfamilies. Sequences of this transposon were masked in these genomes and their transposase sequences were recovered using BLASTn. Phylogenetic analyses were employed to reconstruct their evolutionary history and compare it to that of host genomes. Galileo was found in nearly all 163 species, however, only 37 harbored nearly complete transposase sequences. In the remaining, Galileo was found highly fragmented. Copies from related species were clustered, however horizontal transfer events were detected between the melanogaster and montium groups of Drosophila , and between the latter and the Lordiphosa genus. The similarity of sequences found in the virilis and willistoni groups of Drosophila was found to be a consequence of lineage sorting. Therefore, the evolution of Galileo is primarily marked by vertical transmission and long-term inactivation, mainly through the deletion of open reading frames. The latter has the potential to lead copies of this transposon to become miniature inverted-repeat transposable elements.

show abstract