Find research datasets worth reusing

Fig. 10 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 10. Unusual dorsal pattern in OMNH 35109, a putative hybrid female, SVL 69 mm, of Aspidoscelis neomexicana 3 A. sexlineata viridis from South of Clabberhill Ranch (CL1*), Conchas Lake, San Miguel County, New Mexico.

Fig. 9 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 9. Life colors in three lizards used in genetic studies. A. Diploid Aspidoscelis neomexicana adult female, AMNH R151740, SVL 72 mm, Cove Campground (CL13), Conchas Lake, San Miguel County, New Mexico. B. Triploid Aspidoscelis neomexicana 3 A. sexlineata viridis hybrid male, AMNH R151739, SVL 74 mm, from South Recreation Area (CL2*), Conchas Lake, San Miguel County, New Mexico. C. Diploid A. sexlineata viridis adult male, AMNH R108142, SVL 69 mm, from Kiowa County, Colorado.

Fig. 3. A in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 3. A relatively stable topographically and ecologically complex area located north of the Canadian River and east of Conchas Lake Dam as viewed from the south side of the river, San Miguel County, New Mexico. North of Canadian River (CL4); V near middle shows the area with openstructured mesquite, grassesweeds, and junipers along an unpaved road on the upper bench near a precipice from which individuals of Aspidoscelis neomexicana, A. tesselata C, and A. exsanguis, but not A. sexlineata viridis or A. tesselata D, have been collected; lower V shows bench near the river with dense mesquite, grasses, and weeds in which only individuals of A. neomexicana have been observed. The presence of Aspidoscelis neomexicana along the rocky precipice at CL4, from which it flees into the boulders below when threatened, makes this site the most unusual known to us for the species throughout its range.

Fig. 13. Subadult Aspidoscelis neomexicana 3 A in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 13. Subadult Aspidoscelis neomexicana 3 A. sexlineata viridis hybrids from components of the South Recreation Area (CL2*), Conchas Lake, San Miguel County, New Mexico. A. UADZ 7561?, CL2J*, SVL 49 mm. B. UADZ 7556 /, CL2H*, SVL 49 mm. C. UADZ 7555 /, CL2H*, SVL 47 mm. D. UADZ 7452?, CL2H*, SVL 37 mm. E. UADZ 7448?, CL2H*, SVL 45 mm. F. UADZ 7455 /, CL2C*, SVL 48 mm.

Fig. 11 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 11. Adult specimens of Aspidoscelis neomexicana of special significance. A. AMNH R151740 /, SVL 73 mm, from Cove Campground (CL13), Conchas Lake, San Miguel County, New Mexico, used in karyotypic and electrophoretic analyses in this study. B. MSB 65617 /, SVL 79 mm, from Fort Sumner–De Baca County Landfill (FS1), Fort Sumner, De Baca County, New Mexico; first reported specimen of the species from the county (Taylor, 2002). C. AMNH R151741 /, SVL 73 mm, from Fort Sumner–Railroad Depot (FS2), Fort Sumner, De Baca County, New Mexico, used in karyotypic and electrophoretic analyses in this study.

Fig. 8 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 8. Four or five generations represented by specimens of Aspidoscelis neomexicana 3 A. sexlineata viridis from South Recreation Area (CL2*), Conchas Lake, San Miguel County, New Mexico, inferred from date of collection and snout–vent length (mm). Some lizards are active at the site from May to October (MJJASO) each year; horizontal line representing each lizard extends from the inferred year and month of hatching to the actual year and month of collection (. 5 younger or older age uncertain).

Fig. 15 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 15. Pattern of morphological variation expressed by the distribution of scores on the first two principal components extracted from a correlation matrix of eight meristic characters for 49 A. neomexicana (Ơ), 26 A. sexlineata viridis (m 5? and M 5 /), 13 A. neomexicana 3 A. sexlineata viridis (v 5? and V 5 /), AMNH 144085 5 UADZ 3272 (3, assigned to the hybrid group as indicated by Walker et al., 1990), OMNH 35109 (1, assigned to the hybrid group as suspected by B.E. Leuck), and 26 A. tesselata C (n) from Conchas Lake, San Miguel County, New Mexico. Ellipses represent the 95% confidence limits of each group.

Fig. 14 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 14. Comparison of mesoptychial scale size in parental forms and their hybrids. A. UADZ 7318 /, SVL 80 mm, small scales in Aspidoscelis neomexicana. B. UADZ 7464 /, SVL 68 mm, small scales in A. neomexicana. C. UADZ 7396 /, SVL 63 mm, greatly enlarged scales in A. sexlineata viridis. D. UADZ 7553?, SVL 72 mm, enlarged scales in A. neomexicana 3 A. sexlineata viridis. E. UADZ 7554 /, SVL 79 mm, enlarged scales in A. neomexicana 3 A. sexlineata viridis.

Fig. 6 in Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context

Fig. 6. An example of extreme habitat degradation resulting from the activities of man south of Conchas Lake in South Recreation Area (CL2*), San Miguel County, New Mexico. Looking northeast across the Juniper Campground Component (CL2J*) from which individuals of Aspidoscelis neomexicana, A. tesselata C and D, A. exsanguis, A. sexlineata viridis, and A. neomexicana 3 A. sexlineata viridis (including AMNH R151739 used in karyotypic and electrophoretic analyses in this study) have been collected.

opencc-by-4.0Aug 2003View details →

Fig. 3 in Two parthenogenetic millipede species/lines of the genus Poratia Cook & Cook, 1894 (Diplopoda, Polydesmida, Pyrgodesmidae) found free from Wolbachia bacteria

Fig. 3. Agarose gel picture showing the results of PCR analysis of Poratia digitata egg DNA using specific WOB76f/WOB1012r primers, to illustrate the presence of eubacteria, but no Wolbachia.

opencc-by-4.0Aug 2003View details →

Fig. 1 in Two parthenogenetic millipede species/lines of the genus Poratia Cook & Cook, 1894 (Diplopoda, Polydesmida, Pyrgodesmidae) found free from Wolbachia bacteria

Fig. 1. Agarose gel picture showing the results of PCR analysis of Poratia DNA using primers specific to the wsp gene of Wolbachia, but with traces of a band of the same molecular weight (ca 600 pairs of nucleotides) as in Wolbachia.

opencc-by-4.0Aug 2003View details →

Fig. 2 in Two parthenogenetic millipede species/lines of the genus Poratia Cook & Cook, 1894 (Diplopoda, Polydesmida, Pyrgodesmidae) found free from Wolbachia bacteria

Fig. 2. Agarose gel picture showing PCR analysis of Poratia DNA using general eubacterial primers, with a band corresponding to 1459 pairs of nucleotides (eubacteria) being particularly distinct.

opencc-by-4.0Sep 2020View details →

Figure 5 in EVIDENCE OF PARTHENOGENETIC POPULATIONS FROM THE PARATANYTARSUS LACCOPHILUS SPECIES GROUP (DIPTERA: CHIRONOMIDAE) IN THE ALASKAN ARCTIC Abstract Introduction

Figure 5. Development of parthenogenetic Paratanytarsus laccophilus species-group progeny in the 15.3 °C treatment in 2016. a) An egg mass freshly laid on 11 July. b) The same egg mass on 15 July, just before hatch. c-g) Daily progression of development. c) Eggs on 12 July 2016 at one day old. d) At two days old. e) At three days old, eye spots (arrow) and head capsules were evident inside the egg. f) At four days old, eye spots and head capsules (arrow) were well-defined within the egg. g) Larvulae (arrow) hatched on 16 July, five days after oviposition. Several vacated eggs are clearly notable. Scale bar = 1 mm for a and b, and 250 μm for c-g.

opencc-by-4.0Sep 2020View details →

Figure 2 in EVIDENCE OF PARTHENOGENETIC POPULATIONS FROM THE PARATANYTARSUS LACCOPHILUS SPECIES GROUP (DIPTERA: CHIRONOMIDAE) IN THE ALASKAN ARCTIC Abstract Introduction

Figure 2. Lateral view of a recently emerged individual (female) of the Paratanytarsus laccophilus species group in Utqiaġvik, Alaska. The specimen was submerged in a thin film of 70% EtOH immediately after it emerged from a rear- ing cup in the lab, and her natural coloration was captured via photomicroscopy. Scale bar = 1 mm.

opencc-by-4.0Sep 2020View details →

Figure 4. a in EVIDENCE OF PARTHENOGENETIC POPULATIONS FROM THE PARATANYTARSUS LACCOPHILUS SPECIES GROUP (DIPTERA: CHIRONOMIDAE) IN THE ALASKAN ARCTIC Abstract Introduction

Figure 4. a) Emergence synchrony of individuals of the Paratanytarsus laccophilus species group as evidenced by pupal exuviae count vs. sample date (Julian) in 2015 and 2016 from Kaleak Pond. In both years sampling began on Julian day 150 (30 May and 29 May, respectively). In 2015 sampling concluded on Julian date 201 (20 July), and in 2016 on day 213 (31 July). b) Hourly temperature (°C) vs. Julian date from a Hoboware data logger in Kaleak Pond. Thaw was defined according to McEwen and Butler (2018) using the pond-specific logger. In 2015 pond thaw occurred on day 139 (19 May), and in 2016 on day 137 (16 May). The red curve through the data points represents the cubic spline with a bootstrap confidence region at lambda = 0.05.

opencc-zeroJun 2023View details →

Genetic and phenotypic consequences of local transitions between sexual and parthenogenetic reproduction in the wild

Transitions from sexual to asexual reproduction have occurred in numerous lineages across the tree of life, but many questions remain about how such transitions occur and why asexual populations rarely persist. In facultatively parthenogenetic animals, all-female populations can arise when males are absent or become extinct and, if such populations can persist asexually for many generations, they could ultimately give rise to obligately asexual species. However, the initial stages of this process remain poorly understood. The facultatively parthenogenetic Australian phasmid Megacrania batesii exhibits a spatial mosaic of mixed-sex populations that reproduce predominantly sexually and all-female sites that reproduce exclusively via parthenogenesis. We used this system to compare genetic and phenotypic parameters among multiple natural populations that vary in reproductive mode and geographic location. Analysis of single nucleotide polymorphisms (SNPs) collected from reduced representation whole genome data showed populations grouping by geographic location rather than reproductive mode, with little gene-flow between them. Mixed-sex populations had drastically higher heterozygosities than all-female populations. Phenotypic analysis revealed considerable inter-population variation in rates of deformities in (non-functional) wings, with higher mean frequency and severity of deformities in all-female sites. All-female sites also harbored more parasites, but only in swamp habitats. However, reproductive mode did not explain variation in mean female fecundity, egg hatching success, or missing appendages. These results indicate that local transitions to parthenogenetic reproduction can lead to increased rates of developmental abnormalities and increased vulnerability to disease but can also occur without substantial fitness consequences despite dramatic reductions in genetic diversity and heterozygosity.

publicJul 2021View details →

Data supporting Fear of sex: Sexual conflict exposed as avoidance in a parthenogenetic invertebrate

Open the record for dataset details and reuse information.

publicApr 2024View details →

Does ecology shape geographical parthenogenesis? Evidence from the facultatively parthenogenetic stick insect Megacrania batesii

Open the record for dataset details and reuse information.

publicSep 2025View details →

Racing amidst change: urbanization and climate alter functional traits and distribution of an Amazonian parthenogenetic lizard

Open the record for dataset details and reuse information.