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6 results for “Triturus marmoratus”
FIGURE 5 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE 5 The Iberian Peninsula with the ranges of Triturus pygmaeus in light red and T. rudolfi in brown (Arntzen, 2023, 2024). Populations of the counterpart species T. marmoratus are coloured according to the dominant mitochondrial haplogroups with colours as in the legend and fig. 4. The solid or interrupted black line shows the northern range of T. m. harmannis ssp. nov., as determined by the green, yellow and blue sections in fig. 1. Note that haplogroups 1 and 2 are associated with T. m. marmoratus and that haplogroups 3, 4 and 5 are associated with T. m. harmannis ssp. nov. Haplogroup 6 is associated with T. pygmaeus and T. rudolfi (for details see table 2). Areas shown in white fall outside the documented range of the T. marmoratus species group and areas shown in grey are distant from a sampled locality.
FIGURE A1 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE A1 Holotype of Triturus marmoratus harmannis ssp. nov. at right and ventral view. Size bar is 1 cm. Stored at the Museo Nacional de Ciencias Naturales, Madrid, Spain under catalogue number 51792.
FIGURE 3 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE 3 Histogram of scores along the first axis for the discriminant analysis of size corrected morphometric data for Triturus marmoratus marmoratus (shaded bars) and T. m. harmannis ssp. nov. (open bars). This first discriminant axis is most strongly correlated with extremity lengths and not the other characters. Highest loadings on the second axis are for head length and head width (results not shown).
FIGURE 1 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE 1 Classification and geographical distribution of European marbled and pygmy newts from a panel of 32–33 nuclear genetic markers (data from Kazilas et al., 2024). (A) HIests plot with ancestry and heterozygosity for within marbled newts (top panel, with Triturus m. marmoratus left and T. m. harmannis ssp. nov. to the right) and for pygmy newts (bottom panel, with T. rudolfi to the left and T. pygmaeus to the right). (B) Investigated Iberian populations shown by black dots with surrounding areas coloured as in A. Areas shown in white fall outside the documented range of the T. marmoratus species group and areas in shown grey are distant from a sampled locality. The open square symbol in the Lisbon Peninsula corresponds to the open round symbol in A.
FIGURE 4 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE 4 Minimum spanning network for mitochondrial ND 4 sequences retrieved from pygmy newts (Triturus rudolfi and T. pygmaeus) with a single haplogroup in red (H6), and marbled newts (T. marmoratus) with five haplogroups shown as H1 – green, H2 – light green, H3 – light blue, H4 – blue and H5 – purple. Satellite haplotypes are allocated to the nearest main haplotype, based on minimum uncorrected p-distances (details see text). Size of the circles corresponds to sample size (see legend). Internal and external branches have lengths of one or two substitutions, except for those marked with an 'x' that have 5‒7 substitutions.
FIGURE 2 in A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
FIGURE 2 Histograms of Nlink values observed for adults of Triturus m. marmoratus (N = 167, shaded bars) and T. m. harmannis ssp. nov. (N = 635, open bars), with (A) all data and (B) averages for populations with a sample size ≥ 10. (C) Juvenile T. marmoratus from the subspecies transition area (Poço do Inferno near Valongo, Portugal). The photo aims to illustrate the species, and to discuss the usefulness of the character Nlinks for subspecies identification (details see text).
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