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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Are the TTAGG and TTAGGG telomeric repeats phylogenetically conserved in aculeate Hymenoptera?

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Menezes, Rodolpho S. T. [1] ; Bardella, Vanessa B. [2] ; Cabral-de-Mello, Diogo C. [2] ; Lucena, Daercio A. A. [1] ; Almeida, Eduardo A. B. [1]
Total Authors: 5
[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras FFCLRP, Dept Biol, Lab Biol Comparada & Abelhas, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Estadual Paulista, UNESP, IB, Dept Biol, Av 24A, 1515, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: NATURWISSENSCHAFTEN; v. 104, n. 9-10 OCT 2017.
Web of Science Citations: 4

Despite the (TTAGG)(n) telomeric repeat supposed being the ancestral DNA motif of telomeres in insects, it was repeatedly lost within some insect orders. Notably, parasitoid hymenopterans and the social wasp Metapolybia decorata (Gribodo) lack the (TTAGG)(n) sequence, but in other representatives of Hymenoptera, this motif was noticed, such as different ant species and the honeybee. These findings raise the question of whether the insect telomeric repeat is or not phylogenetically predominant in Hymenoptera. Thus, we evaluated the occurrence of both the (TTAGG) n sequence and the vertebrate telomere sequence (TTAGGG)(n) using dot-blotting hybridization in 25 aculeate species of Hymenoptera. Our results revealed the absence of (TTAGG)(n) sequence in all tested species, elevating the number of hymenopteran families lacking this telomeric sequence to 13 out of the 15 tested families so far. The (TTAGGG)(n) was not observed in any tested species. Based on our data and compiled information, we suggest that the (TTAGG)(n) sequence was putatively lost in the ancestor of Apocrita with at least two subsequent independent regains (in Formicidae and Apidae). (AU)

FAPESP's process: 15/02432-0 - Organization and chromosomal evolution of repetitive elements in genomes of social wasps
Grantee:Rodolpho Santos Telles de Menezes
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 11/09477-9 - Taxonomy, phylogeny, biogeography, and evolution of Neopasiphaeinae bees (Hymenoptera: Colletidae) using molecular and morphological data
Grantee:Eduardo Andrade Botelho de Almeida
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 15/12326-3 - Systematics and biogeography of Chrysidini wasps (Hymenoptera: Chrysididae)
Grantee:Daercio Adam de Araújo Lucena
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/21098-7 - Bridging chromosomal evolution and diversification in neotropical swarm-founding wasps through phylogenomics
Grantee:Rodolpho Santos Telles de Menezes
Support type: Scholarships abroad - Research Internship - Post-doctor