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Hexapod Origins: Monophyletic or Paraphyletic?
It is shown that Collembola, a wingless group traditionally considered as basal to all insects, appears instead to constitute a separate evolutionary lineage that branched much earlier than the separation of many crustaceans and insects and independently adapted to life on land.
Insects: Their Spermatozoa and Phylogeny
Taxonomic summary and phylogenetic analysis of the fertilizing spermatozoon phylogeny of the hexapod orders superclass hexapoda class insecta (ectognathous hexapods) and the hemipteroid orders.
Population structure and colonization history of the olive fly, Bactrocera oleae (Diptera, Tephritidae)
Genetic similarity and assignment tests cluster the remaining populations into two genetic groups — Africa and a group including the Mediterranean basin and the American region, indicating that Africa, and not the Mediterranean, is the origin of flies infesting cultivated olive.
Wolbachia-induced delay of paternal chromatin condensation does not prevent maternal chromosomes from entering anaphase in incompatible crosses of Drosophila simulans.
The behavior of parental chromosomes during the first mitosis of Drosophila simulans zygotes obtained from unidirectional incompatible crosses is described and it is demonstrated that the condensation of parental chromatin complements was asynchronous, suggesting that the anaphase onset of maternal chromosomes is unaffected by the improper alignment of the paternal complement.
Domestication of olive fly through a multi-regional host shift to cultivated olives: comparative dating using complete mitochondrial genomes.
The complete mitochondrial DNA sequence of the basal hexapod Tetrodontophora bielanensis: evidence for heteroplasmy and tRNA translocations.
- F. Nardi, A. Carapelli, P. Fanciulli, R. Dallai, F. Frati
- BiologyMolecular biology and evolution
- 1 July 2001
The complete 15,455-nt mitochondrial DNA sequence of the springtail Tetrodontophora bielanensis (Arthropoda, Hexapoda, Collembola), which shows the well-known A+T bias typical of insect mtDNA, and two tRNA translocations were found which were unprecedented among Arthropoda.
The mitochondrial genome of the olive fly Bactrocera oleae: two haplotypes from distant geographical locations
The complete sequence of the olive fly (Bactrocera oleae) mitochondrial genome has been determined. Two independent haplotypes, from flies of distant geographical origin (Italy and Portugal) were…
Bacteria Associated with the Oesophageal Bulb of the Medfly Ceratitis capitata (Diptera:Tephritidae)
Extracellular Gram negative bacteria were found to be commonly associated to the oesophageal bulb of Ceratitis capitata with Klebsiella oxytoca and Enterobacter agglomerans as the most common…