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FIGURE 6 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 6 The temperature inside nests of O. lunifer larvae compared with ambient over a 24 h cycle: (a) tree-hugger nests (n = 9) and (b) ground nests (n = 14). The data point for each nest is the mean of seven to eight consecutive days of measurement.

FIGURE 5 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 5 Ochrogaster lunifer (a) pupa with cocoon cut open and (b) newly emerged adult female of the tree-hugger form.

FIGURE 1 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 1 The egg masses and nests of the two forms of O. lunifer co-occurring at Gatton, QLD: (a) tree-hugger egg mass in the fork of a twig, (b) tree-hugger nest on the trunk of C. tessellaris, (c) three ground egg masses at base of an Acacia sp., and (d) a ground nest.

FIGURE 2 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 2 The confirmed locations of the O. lunifer tree-hugger form and the range of C. tessellaris occurrence in Australia. C. tessellaris data from the Atlas of Living Australia.

FIGURE 3 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 3 The orientation of egg masses and nests of O. lunifer: (a) tree-hugger egg masses, (b) ground-nester egg masses, (c) tree-hugger nests, and (d) ground nests. Dashed line is the mean orientation.

opencc-zeroSep 2019View details →

Genotype-by-environment interaction in Corymbia citriodora (Hook.) K. D. Hill, & L. A. S. Johnson progeny test in Luiz Antonio, Brazil.

Corymbia citriodora is one of the most cultivated hardwood species by small farmers in Brazil, and the most traded wood on the east coast of Australia due its high growth rate combined with high wood density. The study of genotype-by-environment interaction (GEI) is one of the most critical elements in the management of a breeding program to define breeding zones and to select genetic material targeted to specific environmental conditions. The aim of this research was to estimate genetic parameters in a C. citriodora progeny tests, established using 56 open-pollinated families in three sites with contrasting soil texture within the Luiz Antônio's experimental station, Brazil. The following traits were measured at 30 years of age: total height, diameter at breast height (DBH), stem form and survival. Based on this data, the individual volume was estimated. The harmonic mean relative performance of genetic values (MHPRVG) predicted by BLUP was used to evaluate productivity, stability and adaptability. The GEI was found to be not significant in all growth traits. A complex GEI was detected only for survival, supporting the importance of choosing the right genetic material of the species to specific sites. The present analysis showed a significant difference between families for DBH, survival and volume. In summary, the material studied presents potential to obtain attractive genetic gains through selection. However, in order to keep these sustained gains over the next selection cycles it is necessary to incorporate new genetic materials in order to increase genetic diversity.

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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-zeroDec 2023View details →

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FIGURE 4 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form

FIGURE 4 Frequency plot of the head capsule widths of Ochrogaster lunifer tree-hugger larvae.

publicDec 2023View details →

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

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Data from: Persistence with episodic range expansion from the early Pleistocene: the distribution of genetic variation in the forest tree Corymbia calophylla (Myrtaceae) in south-western Australia

Phylogeographic patterns of trees in topographically subdued, unglaciated landscapes are under-reported, and might reflect population persistence and the influences of environment and distance over historical (~2.6Mya-present) and contemporary (recent generations) time-scales. We examined this hypothesis using genetic analyses of four slowly evolving non-coding chloroplast sequences and 16 nuclear microsatellites in the tree Corymbia calophylla from south-western Australia that has been unglaciated since the Permian (.300-250Mya). We found strong population differentiation for chloroplast DNA and low differentiation for nuclear loci, consistent with higher gene flow by pollen than seed. We identified three divergent chloroplast lineages distributed in central, north and south geographic regions, and diversifying from the early (.3.028Mya), mid- (.0.793Mya) and late- (.0.426Mya) Pleistocene, respectively. Moderate-high nucleotide diversity with population-specific haplotypes supported long-term persistence but diversification of lineages provided evidence of unexpected episodic range expansion. We suggest this pattern reflects environmental influences of climatic oscillations during progressive drying of south-western Australia from the early Pleistocene. Significant tests for isolation by environment for nuclear loci also supported an influence of contemporary environmental (aridity) conditions on genetic structure, but isolation by distance (IBD) was greater. Significant chloroplast and nuclear IBD suggested distance was a major influence on gene flow at both time-scales.

opencc-zeroDec 2017View details →

opennotspecifiedDec 2005View details →

FIGURES 8–15 in Moona, a new genus of tetrastichine gall inducers (Hymenoptera: Eulophidae) on seeds of Corymbia (Myrtaceae) in Australia

FIGURES 8–15. Moona spermophaga sp. n. and seeds of Corymbia macualta. 8. Antenna, Ψ; 9. Antenna, ♂; 10. Forewing; 11. Submarginal vein; 12. M. spermophaga, Ψ; 13. M. spermophaga, ♂; 14. galled seeds, with more than 3 chambers; 15. normal healthy seeds.

opennotspecifiedDec 2005View details →

FIGURE 1–7 in Moona, a new genus of tetrastichine gall inducers (Hymenoptera: Eulophidae) on seeds of Corymbia (Myrtaceae) in Australia

FIGURE 1–7. Moona spermophaga sp. n. Ψ. 1. Vertex, dorsal view; 2. Face, frontal view; 3. Head, lateral view; 4. Thorax, dorsal view; 5. Thorax, lateral view; 6. Gaster, dorsal view; 7. Gaster, lateral view.

FIGURE 17. The 10001 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURE 17. The 10001st Bayesian tree inferred from mitochondrial DNA cytochrome oxidase subunit I under GTR+I model (lnL=1554.5043; freqA=0.2072; freqC=0.1201; freqG=0.1866; freqT=0.4861; R(a)=0.0529; R(b)=5.5166; R(c)=1.729; R(d)=0.5022; R(e)=2.9846; R(f)=1; Pinva=0.6478; Shape=equal). Posterior probability values in bold exceeding 50% are given on appropriate clades, the other values are absolute nucleotide differences.

FIGURES 1–12 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURES 1–12. Fergusobia magna ex C. tessellaris. Parthenogenetic female. 1: Entire female. 2: Habitus. 3: Head and stylet. 4: Tail shapes. Infective female. 5: Entire female. 6: Habitus. 7: Head and stylet. 8: Tail shapes. Male. 9: Entire male. 10: Habitus. 11: Head and stylet. 12: Tail shapes. Scale bars 1, 5, 9 = 50 µm; 3, 7, 11 = 5 µm.

FIGURES 18–23 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURES 18–23. Habitus of Fergusobia magna ex C. tessellaris and Fergusobia spp. collected from other Corymbia spp. 18: Parthenogenetic female, male and infective female of F. magna. 19: Parthenogenetic female of Fergusobia sp. ex C. citriodora subsp. variegata. 20: Parthenogenetic female and male of Fergusobia sp. ex C. intermedia. 21: Parthenogenetic female, male and infective female of F. ptychocarpae ex C. ptychocarpa. 22: Parthenogenetic female of Fergusobia sp. ex C. trachyphloia. 23: Parthenogenetic female, male and infective female of Fergusobia sp. ex Corymbia sp. Scale bars = 50 µm.

FIGURE 16. The 10001 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURE 16. The 10001st Bayesian tree inferred from 28S D2/D3 under TVM+G model (lnL=2116.6306; freqA=0.2878; freqC=0.1496; freqG=0.2413; freqT=0.3212; R(a)=0.9996; R(b)=3.7074; R(c)=2.0173; R(d)=0.3183; R(e)=3.7074; R(f)=1; Pinva=0; Shape=0.3069). Posterior probability values exceeding 50% are given on appropriate clades, the other values are absolute nucleotide differences.

FIGURES 24–26 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURES 24–26. Dorsal shields of Fergusonina fly larvae collected from galls on Corymbia spp. 24: Automontage image of fly larva ex 'stem' gall on C. tessellaris. Scale bar = 3 mm. 25: Fn. eucalypti ex flower bud gall on C. maculata (after Currie 1937). Scale bar = 5 mm. 26: Fergusonina Sp. 6 of Currie, ex axial bud gall on C. maculata (after Currie 1937). Scale bar = 4 mm.

FIGURES 13–15 in Nematodes from galls on Myrtaceae. I. Fergusobia / Fergusonina galls on Corymbia spp., with re-description of F. m a g n a and notes on its phylogenetic relationships

FIGURES 13–15. Fergusobia magna ex C. tessellaris. 13: Drawing of scanning electron micrograph showing lateral view of head. Arrows indicate dorsal and ventral sectors. 14: Drawing of scanning electron micrograph showing semi-en face view of head. 15: Spicules. Scale bars = 5 µm.

opennotspecifiedDec 2013View details →

FIGURE 8. Shield forms from L3 in Nematodes from galls on Myrtaceae. IV. Fergusobia from flat leaf galls on Eucalyptus and Corymbia, with descriptions of two new species

FIGURE 8. Shield forms from L3 larvae of Fergusonina spp. from flat leaf galls (automontage images): A, from E. odorata; B, from E. siderophloia; C, from E. porosa. Scale bars = 0.5 mm.