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11 results for “Melaleuca quinquenervia”
Fig. 3 in Response of two chemotypes of Melaleuca quinquenervia (Myrtales: Myrtaceae) saplings to colonization by specialist herbivores
Fig. 3. Total mean (± SE) leaf biomass shed via abscission by Melaleuca quinquenervia saplings subjected to unrestricted or restricted herbivory by Oxyops vitiosa and Boreioglycaspis melaleucae. **: P = 0.01.
Fig. 1 in Response of two chemotypes of Melaleuca quinquenervia (Myrtales: Myrtaceae) saplings to colonization by specialist herbivores
Fig. 1. Mean (± SE) dry weight biomass of leaves shed via abscission by saplings of 2 Melaleuca quinquenervia chemotypes subjected to 2 levels of herbivory by Oxyops vitiosa and Boreioglycaspis melaleucae.
Data from: Genetic variation and evolution of secondary compounds in native and introduced populations of the invasive plant Melaleuca quinquenervia
We examined multivariate evolution of 20 leaf terpenoids in the invasive plant Melaleuca quinquenervia in a common garden experiment. While most compounds, including 1,8-Cineole and Viridiflorol, were reduced in home compared with invaded range genotypes, consistent with an evolutionary decrease in defense, one compound (E-Nerolidol) was greater in invaded than home range genotypes. Nerolidol was negatively genetically correlated with Cineole and Viridiflorol, and the increase in this compound in the new range may have been driven by this negative correlation. There was positive selection on all three focal compounds, and a loss of genetic variation in introduced range genotypes. Selection skewers analysis predicted an increase in Cineole and Viridiflorol and a decrease or no change in Nerolidol, in direct contrast to the observed changes in the new range. This discrepancy could be due to differences in patterns of selection, genetic correlations or the herbivore communities in the home versus introduced ranges. While evolutionary changes in most compounds were consistent with the Evolution of Increased Competitive Ability Hypothesis, changes in other compounds as well as selection patterns were not, indicating that it is important to understand selection and the nature of genetic correlations to predict evolutionary change in invasive species.
FIGURE 1. Fergusobia rosettae n in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 1. Fergusobia rosettae n. sp. (all in lateral view): A, Entire parthenogenetic female; B, Head of parthenogenetic female; C, Habitus; D, Tails of parthenogenetic females; E, Entire infective female; F, Head of infective female; G; Habitus; H, Tails of infective females; I, Entire male; J, Head of male; K, Habitus; L, Tails of males. Scale bars: A, E, I = 50 µm. B, F, J = 5 µm. Tails not drawn to scale.
FIGURE 6. Shields from L3 in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 6. Shields from L3 fergusoninid larvae from galls on Melaleuca and Syzygium spp.: A, Fergusonina sp. from 'rosette' galls on M. quinquenervia; B, Fergusonina sp. from unilocular galls on S. luehmannii; C, Fn. metrosiderosi from basal shoot galls on Mt. excelsa (drawn from Taylor 2004); D, Fn. syzygii from axilliary bud galls on S. cumini (redrawn from Harris 1982): E, Fn. goolsbyi from rosette galls on M. nervosa (drawn from Taylor 2004); Fn. turneri from shoot bud gall on M. quinquenervia (drawn from Taylor 2004). Scale bars: A, B, E = 0.2 mm; C, F = 1 mm; D = 0.5 mm.
FIGURE 3 in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 3. Habitus drawings of Fergusobia spp. collected from small shoot bud galls: A, F. rosettae n. sp. from M. quinquenervia; B, F. tolgaensis n. sp. from S. luehmannii: C, F. pohutukawa from Met. excelsa; D, F. jambophila from S. cumini (drawn from Siddiqi 1986); E, Fergusobia sp. 1 from M. nervosa; F, F. nervosa from M. nervosae; G, F. quinquenerviae from M. quinquenervia. Scale bars = 50 µm.
FIGURE 2. Fergusobia tolgaensis n in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 2. Fergusobia tolgaensis n. sp. (all in lateral view): A, Entire parthenogenetic female; B, Head of parthenogenetic female; C, Habitus; D, Tails of parthenogenetic females; E, Entire infective female; F, Head of infective female; G; Habitus; H, Tails of infective females; I, Entire male; J, Head of male; K, Habitus; L, Tails of males. Scale bars: A, E, I = 50 µm. B, F, J = 5 µm. Tails not drawn to scale.
FIGURE 5 in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 5. Fergusobia/Fergusonina galls: A, 'rosette' gall from M. quinquenervia near Kennedy, QLD; B-E, small galls from S. luehmannii at Tolga, QLD; B-C, flower bud galls; D, unilocular stem galls (arrowed), E, unilocular stem and leaf galls (arrowed). Scale bars = 5 mm.
FIGURE 4 in Nematodes from galls on Myrtaceae. IX. Fergusobia rosettae n. sp. on Melaleuca quinquenervia and F. tolgaensis n. sp. on Syzygium luehmannii, from Queensland
FIGURE 4. Spicules from Fergusobia spp. collected from some small shoot bud galls: A, F. rosettae n. sp. from M. quinquenervia; B, F. tolgaensis n. sp. from S. luehmannii; C, F. nervosae from M. nervosa; D, F. jambophila from S. cumini (drawn from Siddiqi 1986). Not drawn to scale.
Data from: Genetic variation and evolution of secondary compounds in native and introduced populations of the invasive plant Melaleuca quinquenervia
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Fig. 2 in Response of two chemotypes of Melaleuca quinquenervia (Myrtales: Myrtaceae) saplings to colonization by specialist herbivores
Fig. 2. Final mean (± SE) height of Melaleuca quinquenervia saplings of 2 chemotypes (A: viridiflorol; B: E-nerolidol) afer exposure to 2 levels of insect herbivory and 2 water treatments.
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