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445 results for “karyotype”
Fig. 14. Karyotypes from a in A Systematic Review Of Sulawesi Bunomys (Muridae, Murinae) With The Description Of Two New Species
Fig. 14. Karyotypes from a female (upper set: AMNH 223927) and a male (lower set; AMNH 223924) Bunomys penitus: 2N 5 42; FNa 5 58 for both sexes, FNt 5 60 for the female and 61 for the male. Two large subtelocentric pairs are present instead of one, which is the typical number in the karyotypes of B. chrysocomus and B. andrewsi (fig. 13). Additional information is provided in table 12 and the text.
Fig. 13. Karyotypes from a in A Systematic Review Of Sulawesi Bunomys (Muridae, Murinae) With The Description Of Two New Species
Fig. 13. Karyotypes from a female (upper set; AMNH 223077) and a male (lower set; AMNH 223292) Bunomys chrysocomus: 2N 5 42; FNa 5 56, FNt 558. The gross chromosomal complement of B. andrewsi (not illustrated) is similar to this karyotype. Additional information is provided in table 12 and the text.
Fig. 15. Karyotype from a in A Systematic Review Of Sulawesi Bunomys (Muridae, Murinae) With The Description Of Two New Species
Fig. 15. Karyotype from a male (AMNH 225041) Bunomys karokophilus, n. sp.: 2N 5 42; FNa 5 56, FNt 5 60. The presumptive sex chromosomes are submetacentrics, which contrasts with the acrocentrics characterizing the other three species, and six pairs of metacentrics are present instead of seven (figs. 13, 14). Additional information is provided in table 12 and the text.
FIGURE 2 in Karyotypes of the North American Parthenogenetic Whiptail Lizard Aspidoscelis velox, and Return of Aspidoscelis innotatus to the Synonymy of A. velox (Reptilia: Squamata: Teiidae)
FIGURE 2. Chromosomes of four individuals of the triploid Aspidoscelis velox. A. The original unmodified karyotype (K1), with 3 + 36 + 30 = 69 chromosomes; from UAZ 18743. B. The Set I macrochromosomes of karyotype K2, in which one of the original Set I metacentrics apparently underwent centric fission, resulting in 2 + 38 + 30 = 70 chromosomes; from UAZ 21647. C. The Set I macrochromosomes of karyotype K3, in which two of the Set II chromosomes apparently had undergone centric fusion, resulting in 4 + 34 + 30 = 68 chromosomes; from AMNH R-128317. D. The Set I macrochromosomes of karyotypes K4–K6, in which another pair of Set II chromosomes apparently underwent centric fusion, resulting in 5 + 32 + 30 = 67 chromosomes in K4, followed by additional modifications in K5 and K6 (not illustrated; see text); from AMNH R-115954. Note that there is only one clear secondary constriction (NOR) in each, subterminal on one arm of a Set I metacentric chromosome. Scale bar represents 10 microns.
FIGURE 1 in Karyotypes of the North American Parthenogenetic Whiptail Lizard Aspidoscelis velox, and Return of Aspidoscelis innotatus to the Synonymy of A. velox (Reptilia: Squamata: Teiidae)
FIGURE 1. Representatives of two population samples of Aspidoscelis velox. A. Adult female from Kane County, Utah, AMNH R-178713, previously referred to A. innotatus; snout-vent length = 84 mm. This individual had karyotype K1. B. Adult female from Sandoval County, New Mexico, AMNH R-127247; snout-vent length = 78 mm. This individual had karyotype K4.
Fig. 3 in Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil
Fig. 3. Variable Ag-NOR patterns in populations of H. malabaricus from middle rio Doce lakes. A-1, A-2, and B1, B-2 male and female NORs.
Fig. 5 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence
Fig. 5. Representative ideogram of chromosomal pairs in Hypostomus cf. wuchereri showing the banding pattern after digestion using Alu I, Bam HI, Hae III, and Dde I. (a) population from Una River, (b) population from Mutum River.
Fig. 3 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence
Fig. 3. Chromosomal pairs of Hypostomus cf. wuchereri from Una River showing the C-bands and the digestion profiles using Alu I, Hae III, Dde I, and Bam HI.
Fig. 1 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence
Fig. 1. Karyotypes of Hypostomus cf. wuchereri. (a) population from Mutum River, (b) population from Una River. In detail, the NOR-bearing pair after silver nitrate (Ag-NOR) and C-banding (CB).
Fig. 2 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence
Fig. 2. Chromosomal pairs of Hypostomus cf. wuchereri from Mutum River showing the C-bands and the digestion profiles using Alu I, Hae III, Dde I, and Bam HI.
Fig. 4 in Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil
Fig. 4. Patterns of GC-rich regions in H. malabaricus from middle rio Doce lakes. A - karyomorph B male, B - karyomorph B female, and C - karyomorph A.
Fig. 4. DAPI and CMA 3 in Identification of distinct evolutionary units in allopatric populations of Hypostomus cf. wuchereri Günther, 1864 (Siluriformes: Loricariidae): karyotypic evidence
Fig. 4. DAPI and CMA 3 stained chromosomal pairs from Mutum (a) and Una (b) Rivers, showing AT and GC-rich sites, respectively. The NOR-bearing pair is highlighted.
Fig. 4 in Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
Fig. 4. Karyotypes of female (a) and male (b) of Potamotrygon falkneri sample from Porto Rico, highlighting the sex chromosomes after conventional and the chromosomes marked by NOR. Scale bar = 10 m.
Fig. 2 in Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
Fig. 2. Karyotypes of female (a) and male (b) of Potamotrygon aff. motoro sample from Porto Rico, highlighting the sex chromosomes after conventional and the chromosomes marked by NOR. Scale bar = 10 m.
Fig. 1 in Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
Fig. 1. Meiotic chromosomes of Potamotrygon falkneri sample from Ilha Solteira. Spermatogonial metaphase (2n = 65 chromosomes) after Giemsa staining (a) and metaphase I, with 31 bivalents and a trivalent (arrow) (b).
Fig. 3 in Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
Fig. 3. Karyotypes of female (a) and male (b) of Potamotrygon aff. motoro sample from Ilha Solteira, highlighting the sex chromosomes after conventional and the chromosomes marked by NOR. Scale bar = 10 m.
Fig. 2 in Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations
Fig. 2. Hoplias malabaricus karyotypes (karyomorph A) with fluorescent in situ hybridization (FISH) using 5S rDNA (a, d, g), 18S rDNA (b, e, h) and 5SHindIII satellite DNA (c, f, i) probes in the populations from the basins of the São Francisco (a, b, c), Araguaia (d, e, f) and Xingu (g, h, i) Rivers. Scale bar = 5μm.
Fig. 1 in Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations
Fig. 1. Hoplias malabaricus karyotypes (karyomorph A) with conventional Giemsa staining (a, d, g) and C-banding (b, e, h) of the populations from the basins of the São Francisco (a, b), Araguaia (d, e) and Xingu (g, h) Rivers. Boxes display chromosomes with Ag-NORs in the populations from the São Francisco (c), Araguaia (f) and Xingu (i) Rivers. Scale bar = 5μm.
Fig. 3 in Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations
Fig. 3. Ideograms referring to the Hoplias malabaricus populations (karyomorph A) from the São Francisco (a), Araguaia (b) and Xingu (c) Rivers, highlighting the chromosome markers. Black = C-positive heterochromatin; blue = 5S rDNA sites; red = 18S rDNA sites; yellow = 5SHindIII satellite DNA sites.
Fig. 1 in Cytogenetical analyses in three fish species of the genus Pimelodus (Siluriformes: Pimelodidae) from rio São Francisco: considerations about the karyotypical evolution in the genus
Fig. 1. Karyotypes of: a) P. fur, b) P. maculatus, and c) Pimelodus sp. arranged from Giemsa-stained. Ag-NOR-bearing pair is framed.
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