Investigations of Karyology and Hybrids in Triturus boscai and T. vittatus, with a Reinterpretation of the Species Groups within Triturus (Caudata: Salamandridae)

Bucci-Innocenti, Stefania; Ragghianti, Matilde; Mancino, Giorgio

doi:10.2307/1444330

Cited by 43 publications

(26 citation statements)

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“…However, the disparity of the four subspecies for chromosome (e.g. Bucci-Innocenti et a!., 1983;Macgregor and Sessions, 1986) and isozyme (Kalezié and Hedgecock, 1980;Frelow et a!., submitted; Rafiñski and Arntzen, submitted) markers has led some authors to ascribe specific status. Some of the population samples from Yugoslavia and Greece are not clearly classifiable, and are referred to as "carnfex".…”

Section: Newtsmentioning

confidence: 99%

Mitochondrial DNA insertion polymorphism and germ line heteroplasmy in the Triturus cristatus complex

Wallis

1987

Heredity

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Section: Newtsmentioning

confidence: 99%

Mitochondrial DNA insertion polymorphism and germ line heteroplasmy in the Triturus cristatus complex

Wallis

1987

Heredity

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“…To see if the compensatory mechanism is already present in larval newts, eggs laid in the laboratory by Triturus carnifex were raised up to the stage in which the gills reach maximum development -corresponding to the stage which Gliicksohn (1931) labels LXI for Triturus cristatus, a species very close to T. carnifex (Bucci-Innocenti et al, 1983). This stage, well-defined from a morphological point of view and lasting a relatively short time, precedes that in which metamorphosis begins -LXIII -by more than 40 days.…”

Section: Introductionmentioning

confidence: 99%

Blood and splenic respiratory compensation in larval newts

Borgioli¹,

Frangioni²

1997

Italian Journal of Zoology

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In Triturus carnifex, the mechanism of respiratory compensation which regulates the quantity of circulating erythrocytes according to the environmental conditions is already active in larvae at Glücksohn's stage LXI. Larvae anesthetized with chlorbutol and kept at 27° C for 25 min show red blood cell (RBC) counts slightly below 70 000/mm 3 and hematocrit values around 17, while those kept at 6° C for 100 min -the time necessary for the heart to beat the same number of times as at the former temperature -show significantly lower values (P < 0.01): about 40 000 RBC/mm 3 and a hematocrit of 11. The percentage mass and histology of the spleens removed from specimens frozen in liquid nitrogen immediately after testing show that this organ is the site where excess erythrocytes are stored. Tests at 18° C show that, though the voluntary movements of the anesthetized larvae are completely blocked, their gills still move rhythmically, which prevents them from going into hypoxia in stagnant water as, instead, occurs in adults.

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“…However, some other authors have criticized this kinship based on its possible mating with T alpestris which belongs to the Mesotriton group (Spurway, 1953;Bucci-Innocenti et al, 1983). …”

Section: Introductionmentioning

confidence: 99%

“…The studies on this newt, although very scarce, include some devoted to the analysis of the chromosome complement (Herrero, 1982a,b;Bucci-Innocenti et al, 1983). However, there is no information about intraspecific variability in natural populations.…”

Section: Introductionmentioning

confidence: 99%