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Incipient speciation, driven by distinct environmental conditions, in the marine catfishes of the genus Aspistor (Siluriformes, Ariidae), from the Atlantic coast of South America
(2019-05-01)
The Atlantic coast of South America is characterized by significant variation in environmental attributes, such as the salinity and transparency of the water, substrate, temperatures, and oceanic currents, which contribute ...
Parasite assemblages as indicators of an incipient speciation process of Odontesthes argentinensis in an estuarine environment
(Academic Press Ltd - Elsevier Science Ltd, 2021-03)
The silverside Odontesthes argentinensis is commonly reported as a euryhaline species, capable of using estuaries as nurseries and/or feeding grounds. However, in Mar Chiquita Coastal Lagoon system (MCH), northern Argentine ...
Redescription of Notarius grandicassis and Notarius parmocassis (Siluriformes; Ariidae), with insights into morphological plasticity and evidence of incipient speciation
(2017-05-04)
The Thomas sea catfish is characterized by a highly variable parietosupraoccipital process, which has been recognized as intraspecific variation or phenotypic plasticity. On the basis of this variation, three nominal species ...
Genetic structure and different color morphotypes suggest the occurrence and bathymetric segregation of two incipient species of Sebastes off Argentina
(Springer, 2013-06)
Rockfishes of the genus Sebastes are extensively distributed in the Pacific and Atlantic oceans. Although the occurrence of two morphologically similar species in the Southern Hemisphere, Sebastes oculatus and Sebastes ...
Inferring boundaries among fish species of the new world silversides (Atherinopsidae; genus Odontesthes): new evidences of incipient speciation between marine and brackish populations of Odontesthes argentinensis
(Springer, 2019-05)
Species of new world silversides (Actinopterygii; Atherinopsidae; genus Odontesthes) possess economic relevance, biological interest and ecological importance. In the present paper we: (A) investigate the molecular diversity ...
Incipient speciation revealed in Anastrepha fraterculus (Diptera; Tephritidae) by studies on mating compatibility, sex pheromones, hybridization, and cytology
(Wiley Blackwell Publishing, Inc, 2009-05)
It has long been proposed that the nominal species Anastrepha fraterculus is a species complex and earlier studies showed high levels of pre-zygotic isolation between two laboratory strains from Argentina and Peru. Further ...
Sharp phylogeographical differentiation near the southern range edge of the silverside Odontesthes nigricans: Distinct peripheral populations and incipient speciation?
(Academic Press Ltd - Elsevier Science Ltd, 2019-10)
The silverside Odontesthes nigricans is the Atheriniform species that reach the southernmost latitude in Patagonia. Its wide distribution ranges from temperate waters in the Atlantic coast of South America (39°S, Buenos ...
Genetic differentiation and adaptive evolution at reproductive loci in incipient Drosophila species
(Wiley Blackwell Publishing, Inc, 2017-03)
Accessory gland proteins (Acps) are part of the seminal fluid of male Drosophila flies. Some Acps have exceptionally high evolutionary rates and evolve under positive selection. Proper interactions between Acps and female ...
Pattern of genetic differentiation of an incipient speciation process: the case of the high andean killifish orestias (vol 2, e0170380, 2017)
(2017)
Following study of the external morphology and its unmatched variability throughout ontogeny and a re-examination of selected morphological characters based on many specimens of diplomystids from Central and South Chile, ...