Find research datasets worth reusing

opencc-zeroDec 2023View details →

Molecular phylogeny and morphological perianth evolution in Corymbia (Myrtaceae), and the implications for generic delimitation: data and tree files

Premise: Eucalypts (Myrtaceae tribe Eucalypteae) are currently placed in seven genera. Traditionally, Eucalyptus was defined by its operculum but when phylogenies placed Angophora, with free sepals and petals, as sister to the operculate bloodwood eucalypts, the latter were segregated into a new genus, Corymbia. Yet generic delimitation in the tribe Eucalypteae remains uncertain. Here we address these problems using phylogenetic analysis with the largest molecular dataset to date. Methods: We captured 101 low-copy nuclear exons from 392 samples representing 266 species. Our phylogenetic analysis used maximum likelihood (IQtree) and multi-species coalescent (Astral). At two nodes critical to generic delimitation, we tested alternative relationships among Arillastrum, Angophora, Eucalyptus and Corymbia using Shimodaira's AU test. Phylogenetic mapping was used to explore the evolution of perianth traits. Results: Monophyly of Corymbia relative to Angophora was decisively rejected. All alternative relationships among the seven currently recognised Eucalypteae genera imply homoplasy in evolutionary origins of the operculum. Inferred evolutionary transitions in perianth traits are congruent with divergences between major clades except that expression of separate sepals and petals in Angophora, which is nested within the operculate genus Corymbia, appears to be a reversal to the plesiomorphic perianth structure. Conclusions: Here we formally raise Corymbia subg. Blakella to genus rank and make the relevant new combinations. We also define and name three sections within Blakella (B. sect. Blakella, B. sect. Naviculares and B. sect. Maculatae), and two series within Blakella sect. Maculatae (B. ser. Maculatae and B. ser. Torellianae). Corymbia is reduced to the red bloodwoods.

opencc-zeroFeb 2023View details →

Perianth evolution and implications for generic delimitation in the Eucalypts (Myrtaceae): DNA sequences, morphological data

Eucalyptus was traditionally defined by the operculate perianth—hence the generic name (Latin, meaning "well-covered"). But after previous phylogenetic analysis placed Angophora, which has free sepals and petals, as sister to the bloodwood eucalypts, the latter were segregated into a new genus, Corymbia. We made a targeted capture of 101 low-copy nuclear exons from 392 samples representing 329 species-level taxa. The phylogeny was estimated using maximum likelihood (IQtree and RAxML) and the multi-species coalescent (Astral). We tested alternative relationships between four genera within Eucalypteae (Arillastrum, Angophora, Eucalyptus, Corymbia) at each of two nodes critical to generic delimitation using Shimodaira's Approximately Unbiased (AU) test. Monophyly of Arillastrum + (Corymbia + Angophora) relative to Eucalyptus sensu stricto was supported whereas monophyly of Corymbia relative to Angophora was decisively rejected. These results indicate that either Eucalyptus should be expanded to include all four genera or Corymbia should be split into two. All of the alternative relationships among the four currently recognised genera imply homoplasy in perianth evolution, specifically with respect to origins of the bud cap (operculum or calyptra), which has been traditionally used to define Eucalyptus. Inferred evolutionary transitions in perianth traits are generally congruent with divergences between major clades with a single exception: expression of separate sepals and petals in Angophora, which is nested within the operculate genus Corymbia, appears prima facie to be a reversal to the plesiomorphic perianth structure. Strictly, this is not a reversal because the petals of Angophora and Corymbia have a novel compound keel-and-limb structure that is absent in the outgroups. This structure is evident in early development, irrespective of whether the petals remain free or later become part of an operculum. Many of the currently recognised infrageneric taxa down to sectional level (and below in some cases) are well-supported by the sequence data and definable by morphological traits. Inclusion of Angophora within Eucalyptus was formally proposed two decades ago but did not gain acceptance. Here instead, we formally raise Corymbia subg. Blakella to genus rank and make the relevant new combinations.

publicMar 2023View details →

Perianth evolution and implications for generic delimitation in the Eucalypts (Myrtaceae): DNA sequences, morphological data

Open the record for dataset details and reuse information.

publicAug 2025View details →

Data from: Phylogenomic insights into Adenophora and its allies (Campanulaceae): Revisiting generic delimitation and hybridization dynamics

Open the record for dataset details and reuse information.

publicDec 2023View details →

Molecular phylogeny and morphological perianth evolution in Corymbia (Myrtaceae), and the implications for generic delimitation: data and tree files

Open the record for dataset details and reuse information.

opennotspecifiedMar 2020View details →

Figs. 31–36. 31 in A cladistic approach for generic delimitation of Paracloeodes Day, Rivudiva Lugo-Ortiz & McCafferty, and Varipes Lugo-Ortiz & McCafferty (Ephemeroptera: Baetidae)

Figs. 31–36. 31, genitalia, black arrows indicate the unistyliger inner projection (Paracloeodes sp.) Chars 142–149; 32, genitalia, black arrow indicates the spine and convex subgenital plate (Paracloeodes atroari) Chars 142–149; 33, genitalia, black arrow indicates the rounded apex of subgenital plate (Callibaetis sp.) Chars 142–149; 34, genitalia, black arrow indicates the concave subgenital plate (Paracloeodes sp.) Chars 142–149; 35, genitalia, black arrow indicates the rounded apex of subgenital plate (Callibaetis capixaba) Chars 142–149; 36, genitalia, black arrow indicates the triangular subgenital plate (Apobaetis fiuzai) Chars 142–149, adapted from Cruz et al. 2011.

opennotspecifiedMar 2020View details →

Figs. 2–15. 2 in A cladistic approach for generic delimitation of Paracloeodes Day, Rivudiva Lugo-Ortiz & McCafferty, and Varipes Lugo-Ortiz & McCafferty (Ephemeroptera: Baetidae)

Figs. 2–15. 2, elevation of frons with two keels (Paracloeodes charrua), Chars 1 and 2, black arrow indicates frons; 3, elevation of frons with one keel (Paracloeodes atroari) Chars 1 and 2, black arrow indicates frons; 4, organization of setae on labrum (Callibaetis capixaba, left = dorsal, right = ventral) Chars 5, 6, 8, 15, 16, 19, 20, LAS = lateral arc of setae, DAS = distal arc of setae, DMA = distomedial arc of setae, SDA = subdistal arc of setae on ventral surface, MDA = mediodorsal arc of setae, RSVL = ventral row of spine-like setae on lateral margin of labrum, TSVALM = tuft of setae ventrally on anterolateral margin of labrum; 5, organization of setae on labrum (Apobaetis sp.) Chars 10, 14, DDA = distodorsal arc of setae, SDMA = sub-distomedial arc of setae on dorsal surface; 6, organization of setae on labrum (Waltzoyphius sp.) Char. 12, SDLA = sub-distolateral arc of setae on dorsal surface; 7, detail of deep cleft incisors of right mandible (Callibaetis sp.) Char. 30, black arrow indicates the incisors; 8, detail of partially fused incisors of right mandible (Paracloeodes sp.) Char. 30, black arrow indicates the incisors; 9, detail of a small lobe on apex of last segment of maxillary palp (Rivudiva sp.) Char. 43, back arrow indicates the lobe; 10, detail of basal projection of first dentiseta coupling with canine on maxilla (Varipes lasiobranchius) Char. 47; 11, detail of row of setae on outer margin of paraglossa (ROMP) (Callibaetis sp.) Char. 59; 12, detail of labial palp with red lines showing axes for angle measure (Apobaetis sp.) Char. 65; 13, detail of labial palp segment II and III, black arrow indicates the medial concavity on segment III (Callibaetis calloventer) Char. 68; 14, detail of trochanter inserted on ventral margin of femur, red line shows the connection (Varipes lasiobrachius) Char. 73; 15, trochanter inserted along entire base of femur, red line shows the connection (Rhopyscelis caldensis comb. n.) Char. 73.

dryad32/100

Data from: Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae

The circumscription of Molluginaceae has changed radically in recent years, with Corbichonia being moved to Lophiocarpaceae, Limeum to Limeaceae, Macarthuria to Macarthuriaceae and all species of Hypertelis, except the type, to Kewa in Kewaceae. In a broad analysis of core Caryophyllales using plastid trnK-matK and rbcL sequences, the position of Molluginaceae in a strict sense as sister to the Portulacineae clade is corroborated, as are the positions of Corbichonia, Limeum and Kewa outside the family. The phylogeny of Molluginaceae is reconstructed based on trnK-matK and nuclear ITS sequences of about half of the currently recognized species in the family and with representatives from all recognized genera. Mollugo is found to be polyphyletic and a new taxonomy for the family with 11 genera is proposed. Mollugo in its new restricted sense is a mainly American genus of about 15 species, including M. ulei comb. nov., previously placed in the monotypic Glischrothamnus. The Australian and Asian genus Trigastrotheca is resurrected for T. molluginea, T. pentaphylla comb. nov. and T. stricta comb. nov. The name Paramollugo nom. nov. is proposed for the Mollugo nudicaulis group and the combinations P. angustifolia comb. nov., P. cuneifolia comb. nov., P. decandra comb. nov., P. deltoidea comb. nov., P. navassensis comb. nov. and P. nudicaulis comb. nov. are made. Hypertelis is expanded to include, besides the type H. spergulacea, also H. cerviana comb. nov., H. fragilis comb. nov., H. umbellata comb. nov. and H. walteri comb. nov. In Pharnaceum, the new combination P. namaquense comb. nov. is made, Hypertelis longifolia is treated as a synonym of P. lineare and Mollugo tenella as a synonym of P. subtile. Corbichonia is proposed to be treated as a family of its own, Corbichoniaceae fam. nov. Several names are lectotypified, including the Linnaean Mollugo pentaphylla and M. stricta. An anthocyanin is reported for the first time from Simmondsiaceae. The detection of anthocyanins in members of Kewaceae and Molluginaceae agree with previous reports and corroborate the view that these families represent reversals from betalains to anthocyanins. The report of an anthocyanin in Limeaceae, previously regarded as unpigmented, apparently represents a newly detected reversal from betalains to anthocyanins in this family.

opencc-zeroDec 2015View details →

FIGURE 4 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 4. Images showing the same mummy of Fragariocoptes gansuensis under white light (A) and ultraviolet light with wavelength 395 nm (B) and 365 nm (C). Scale bar = 200 µm. Note: brightness and contrast have not been digitally adjusted, so the images correctly indicate the observed differences; same focus and adjustments of video camera in all three images.

FIGURE 3 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 3. CLSM images of a male (A) and a female (B & C) of Fragariocoptes setiger (Nalepa, 1894). A & C—ventral aspect; B—dorsal aspect. Scale bar = 30 µm.

FIGURE 7 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 7. CLSM (A−F) and DICLM (J−I) images showing variation of the prodorsal shield ornamentation in males (A & B) and females (C−I) of Fragariocoptes gansuensis. Note: Images A−F represent specimens from Astrakhan, whereas images J−I correspond to specimens from herbarium. Scale bar = 10 µm.

FIGURE 8 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 8. DICLM (A) and CLSM (B–G) images of seven females of F. gansuensis. A, B – coxigenital area; C—genital area; D—genital aperture; E, F and G—epigynium. Scale bar = 10 µm. Notation: a—ear-like flaps; b—suboral plate; c—rod-like apodeme; d—genital cuticle; e—thickened edge of genital cuticle; f—putative external opening of spermathecal tube; g – genital rim; h—postspermathecal part of longitudinal bridge; i—medial ramus of coxal apodeme; j—genital slit; k—genital coveflap.

FIGURE 2 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 2. CLSM (A,B,D,E) and SEM (C) images of four females of Sierraphytoptus alnivagrans Keifer 1939. Scale bar: A−C = 15 µm; D and E = 30 µm. Note: in E, the cuticle anterior to the epigynium is damaged, therefore the corresponding area is dark; images C and D indicate the real direction of setae ve and sc, whereas in images A and B the setae changed their direction during slide making.

FIGURE 6 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 6. CLSM images of two males of Fragariocoptes gansuensis. A – ventral view of anterior half of body; B and D— genital area; C—coxigenital area. Scale bar: A = 15 µm; B, C and D = 10 µm. Note: images A and B represent one male, images C and D represent another male.

FIGURE 1 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 1. Growth abnormalities caused by Fragariocoptes gansuensis on Potentilla bifurca. A—dried plant material from old herbaria and the corresponding collection label, В, C, D—live damaged plants. Note: B, C—images courtesy of L.F. Nepomenko, D—image courtesy of L. Moskalenko. Scale bar = 30 mm.

FIGURE 5 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 5. Semischematic line drawings of a female of Fragariocoptes gansuensis. A—lateral view, B—coxigenital area, C—prodorsal shield, D—tarsal solenidion, I, E—empodium I, F—leg I, G—leg II, H—microtubercules on opisthosomal annuli. Scale bar: A = 60 µm; B and C = 10 µm; D and E = 5 µm; F and G = 15 µm; H = 10 µm.

FIGURE 9 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 9. PCLM (A) and CLSM images (B—surface rendering; C—volume rendering, same female) of the internal genitalia of two females of Fragariocoptes gansuensis. Scale bar = 10 µm. Notation: a—spermatheca, b—distal segment of spermathecal tube, c—postspermathecal part of longitudinal bridge, d—prespermathecal part of longitudinal bridge, e—genital channel, f—remnants of genital chamber, g—anterior genital apodeme, i—zigzag-shaped hinge, j—anterodorsal extremity of anterior genital apodeme. Note: in images B and C internal structures viewed from dorsal aspect.

Fig. 11 in Leveraging female genitalic characters for generic and species delimitation in Nilomantis Werner, 1907 and Ilomantis Giglio-Tos, 1915 (Mantodea, Nilomantinae)

Fig. 11. Illustrations of dorsal perspective of the Ilomantis pronotum (scale bar = 1 mm). (A) Ilomantis thalassina, female; (B) Ilomantis thalassina, male; (C) Ilomantis ginsburgae sp.n., female; (D) Ilomantis ginsburgae sp.n., male. Ilomantis thalassina exhibits a medial keel that fully traverses the pronotum (A and B); Ilomantis ginsburgae sp.n. exhibits a medial keel that originates in the mid-prozone and concludes at the posterior pronotal margin (C and D). MK, medial keel.

Fig. 10 in Leveraging female genitalic characters for generic and species delimitation in Nilomantis Werner, 1907 and Ilomantis Giglio-Tos, 1915 (Mantodea, Nilomantinae)

Fig. 10. Male genitalic complex of Ilomantis ginsburgae sp.n. (A) Right phallomere, ventral sclerotization of the left phallomeric complex, and dorsal (i.e., "left") sclerotization of the left phallomeric complex (from left to right, respectively); (B, C, D) examples of shape and sclerotization variability present within the anterior process (ap) of L4B. This figure is published in colour in the online edition of this journal, which can be accessed via http://booksandjournals.brillonline.com/content/journals/1876312x.

Fig. 5 in Leveraging female genitalic characters for generic and species delimitation in Nilomantis Werner, 1907 and Ilomantis Giglio-Tos, 1915 (Mantodea, Nilomantinae)

Fig. 5. Female genitalic complex of Ilomantis shown in the ventral perspective with natural and spread positioning. (A) Ilomantis thalassina, natural; (B) Ilomantis thalassina, spread; (C) Ilomantis ginsburgae sp.n., natural; (D) Ilomantis ginsburgae sp.n., spread. Abbreviations: AC, apical cleft; AL, apical lobe; MO, medial outgrowth; MT, medial tine; VF, gonocoxa VIII; GA, gonapophysis VIII; GP, gonapophysis IX II; GL, gonoplac. This figure is published in colour in the online edition of this journal, which can be accessed via http://booksandjournals.brillonline.com/content/journals/1876312x.