Systematic Significance of the Development and Anatomy of Flowers and Fruit of <i>Quercus schottkyana</i> (Subgenus <i>Cyclobalanopsis</i>: Fagaceae)

Deng, Min; Zhou, Zhang; Chen, Yaqiong; Sun, Weibang

doi:10.1086/591976

Cited by 15 publications

(10 citation statements)

References 36 publications

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“…Quercus. Subsequent work has shown that the position of aborted ovules in the mature seeds of Quercus is the result of different developmental processes and less stable than originally assumed (Borgardt and Pigg 1999;Borgardt and Nixon 2003;Deng et al 2008; Table 1).…”

Section: Change In Criteria For Classificationmentioning

confidence: 91%

An updated infrageneric classification of the oaks: review of previous taxonomic schemes and synthesis of evolutionary patterns

Denk¹,

Grimm²,

Manos³

et al. 2017

Preprint

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102

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Lobatae (red oaks) and Group Quercus (white oaks, with most species in America and some 30 species in Eurasia). The main morphological feature characterising these phylogenetic lineages is pollen morphology, a character overlooked in traditional classifications. This realisation, along with the now available (molecular-)phylogenetic framework, opens new avenues for biogeographic, ecological and evolutionary studies and a re-appraisal of the fossil record. We provide an overview about recent advances in these fields and outline how the results of these studies contribute to the establishment of a unifying systematic scheme of . CC-BY-ND 4.0 International license not peer-reviewed) is the author/funder. It is made available under a

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Section: Change In Criteria For Classificationmentioning

confidence: 91%

An updated infrageneric classification of the oaks: review of previous taxonomic schemes and synthesis of evolutionary patterns

Denk¹,

Grimm²,

Manos³

et al. 2017

Preprint

Self Cite

102

View full text Add to dashboard Cite

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“…Based on evidence from molecular phylogeny (Manos et al, 1999;Denk & Grimm, 2010), fossil records (Jones, 1986;Zhou, 1992) and morphological studies (Deng et al, 2008;Denk & Grimm, 2009), two subgenera of Quercus were identified. These studies suggested that subg.…”

Section: Species Distribution Datamentioning

confidence: 99%

Evolutionary history influences the effects of water–energy dynamics on oak diversity in Asia

Wang

Rahbek

et al. 2013

Journal of Biogeography

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Aim Water–energy dynamics are often correlated with geographical patterns of terrestrial plant richness. However, the relative importance of water and energy on species richness is still being debated. Some studies suggest a transition in the relative importance of water and energy along a latitudinal gradient, i.e. that water is the most important factor at low latitudes, whereas energy is the leading factor at high latitudes. The generality of this transition is yet to be established and is the focus of the current study. In particular, we examine whether differences in the evolutionary histories of two subgenera of Asian oaks influence the derived models of water–energy dynamics. Location Asia (70–140° E; 10–60° N). Methods We performed geographically weighted regressions to quantify geographical variation in the relative importance of water and energy on the species richness of Asian oaks (Quercus L.). We also evaluated how evolutionary history influences the relative importance of water and energy in determining species richness, by comparing patterns in the two oak subgenera: Quercus subg. Quercus and Quercus subg. Cyclobalanopsis. In particular, we assessed how the ancestral climatic niche of these two subgenera (i.e. subgenus Quercus of temperate origin versus subgenus Cyclobalanopsis of tropical origin) relates to the relative importance of water and energy on contemporary diversity patterns. Results We found no geographical transition line in the relative importance of water and energy along the latitudinal gradient studied. Instead, we found that the importance of energy relative to water on the species richness of subgenus Quercus increased from mid‐latitudes (warm temperate regions) towards both tropical and boreal regions: this pattern might reflect that this subgenus originated in the temperate region. In contrast, the importance of both water and energy on the species richness of the tropical subgenus Cyclobalanopsis increased from tropical to boreal regions, probably due to a lack of adaptation to winter coldness. Main conclusions Our results suggest that differences in the evolutionary history – specifically the ancestral climatic niche – of the two subgenera of oaks influence the effects of water–energy dynamics on species richness along a latitudinal gradient through niche conservatism.

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“…Local weather influences pollination in some oaks through drought or temperature stress31 and also has a direct impact on the acorn crop size32. Pollination of Q. schottkyana generally occurs before mid-April33. After pollination, the warmer temperatures in May and June promote ovules and young fruit34.…”

Section: Discussionmentioning

confidence: 99%

“…Quercus schottkyana produces acorns annually and pollination occurs in the spring33. Acorns mature on the trees from late May to October and mature acorns fall to the ground between the end of August and mid-late November.…”

Section: Methodsmentioning

confidence: 99%

Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns

Xia

Harrower

Turkington

et al. 2016

Sci Rep

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We investigated how pre-dispersal strategies may mitigate the effects of weevil infestation of acorns in a population of Quercus schottkyana, a dominant oak in Asian evergreen broad-leaved forests, and assess if weevil infestation contributes to low seedling recruitment. We counted the number of acorns produced, daily from the end of August to mid-late November for 9 years from 2006–2014. We also recorded the rate of acorn infestation by weevils and acorn germination rates of weekly collections. Annual acorn production was variable, but particularly low in 2011 and 2013. There was no trade-off between acorn production and acorn dry mass. However, acorns produced later in the season were significantly heavier. For most years: (i) the rate of weevil infestation was negatively density dependent (a greater proportion of acorns died with increased acorn density), (ii) the percentage germination of acorns was positively density dependent (proportionately more acorns germinated with increased density), and (iii) as the season progressed, the percentage of infested acorns declined while germination rates increased. Finally, (iv) maximum acorn production, percentage infestation and percentage germination were asynchronous. Although pre-dispersal mortality is important it is unlikely to be the primary factor leading to low recruitment of oak seedlings.

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Systematic Significance of the Development and Anatomy of Flowers and Fruit of Quercus schottkyana (Subgenus Cyclobalanopsis: Fagaceae)

Cited by 15 publications

References 36 publications

An updated infrageneric classification of the oaks: review of previous taxonomic schemes and synthesis of evolutionary patterns

An updated infrageneric classification of the oaks: review of previous taxonomic schemes and synthesis of evolutionary patterns

Evolutionary history influences the effects of water–energy dynamics on oak diversity in Asia

Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns

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