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11 results for “Jaltomata”
Jaltomata procumbens (Cav.) J.L.Gentry (BR0000012456451)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Data from: Multiple strong postmating and intrinsic postzygotic reproductive barriers isolate florally diverse species of Jaltomata (Solanaceae)
Divergence in phenotypic traits often contributes to premating isolation between lineages, but could also promote isolation at postmating stages. Phenotypic differences could directly result in mechanical isolation or hybrids with maladapted traits; alternatively, when alleles controlling these trait differences pleiotropically affect other components of development, differentiation could indirectly produce genetic incompatibilities in hybrids. Here, we determined the strength of 9 postmating and intrinsic postzygotic reproductive barriers among 10 species of Jaltomata (Solanaceae), including species with highly divergent floral traits. To evaluate the relative importance of floral trait diversification on the strength of these postmating barriers, we assessed their relationship to floral divergence, genetic distance, geographical context, and ecological differences, using conventional tests and a new linear mixed modeling approach. Despite close evolutionary relationships, all species pairs showed moderate to strong isolation. Nonetheless, floral trait divergence was not a consistent predictor of the strength of isolation; instead this was best explained by genetic distance, although we found evidence for mechanical isolation in one species, and an overall positive relationship between floral trait divergence and fruit set isolation across species pairs. Overall, our data indicate that intrinsic postzygotic isolation is more strongly associated with genome-wide genetic differentiation, rather than floral divergence.
FIGURE 6 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 6. Reproductive morphology of J. tlaxcala fruits and seeds. AA–BB: gynoecium bilocular, ovary superior, stigma discoid; CC–FF: fruit a berry; GG–HH: seed oblate, albuminous, dicotyledonous embryo.
FIGURE 5 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 5. Androecium and gynoecium morphology of J. tlaxcala. U: corolla actinomorphic, gamopetalous; V–X: androecium antisepalous, hypogynous; Y–Z: gynoecium bilocular, ovary superior, stigma discoid.
FIGURE 4 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 4. Anthesis and floral morphology of J. tlaxcala. L–N: anthesis; O–P: pedicel subterete or almost terete and perianth rotated, gamosepalous, gamopetalous; Q–S: calyx pubescence, actinomorphic, gamosepalous; T: corolla actinomorphic, gamopetalous.
FIGURE 3 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 3. Vegetative and reproductive morphology of J. tlaxcala. A: prostrate/decumbent habit; B–C: axillary buds; D–F: subalternate leaf arrangement, ovate to elliptic; G–H: umbel of two to three flowers; I–K: perfect actinomorphic flower.
FIGURE 2 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 2. Species delimitation: A: J. procumbens decumbent (Jpd) group, renamed as J. tlaxcalavs. J. procumbens group with J. bohsiana; B: J. procumbens decumbent (Jpd) group, renamed as J. tlaxcala vs. J. procumbens group. The value of PHI = 1.0 means that there is no genetic recombination.
FIGURE 1 in Jaltomata tlaxcala, a new species of the genus Jaltomata (Solanaceae, Solanoideae, Solaneae)
FIGURE 1. Phylogenetic tree of the genus Jaltomata, depicting Mesoamerican and South American clades, with J. procumbens decumbent (Jpd), object of study in this work, and renamed as J. tlaxcala, showing Nicotiana tabacum as outgroup. Statistical support represented with posterior probability/boostrap support.
Data from: Multiple strong postmating and intrinsic postzygotic reproductive barriers isolate florally diverse species of Jaltomata (Solanaceae)
Open the record for dataset details and reuse information.
Data from: Heterochronic developmental shifts underlie floral diversity within Jaltomata (Solanaceae)
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Gene expression in Jaltomata (species herrerae and procumbens) nectaries
GEO Series GSE191201. Jaltomata procumbens; Jaltomata herrerae. 23 samples. Type: Expression profiling by high throughput sequencing.
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