Relationships between leaf shape and climate in <i>Rhododendron mucronulatum</i>

Koksheeva, I. M.; Kislov, Dmitry E.; Tvorogov, Sergey; Doudkin, Roman V.

doi:10.1111/njb.01486

Cited by 8 publications

(2 citation statements)

References 22 publications

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“…Variation among trees in their leaf morphological traits, including stomatal density and distribution, and epidermal features is of special interest in relation to climatic adaptation, because such traits may affect gas exchange and thereby plants' responses to key environmental factors such as light, atmospheric humidity, and CO 2 levels (Xu and Zhou 2008). It is known that leaf morphology can reflect environmental conditions (Halloy and Mark 1996;Traiser et al 2005;Royer et al 2008;Peppe et al 2011;Schmerler et al 2012;Koksheeva et al 2017), and link to drought adaptation (Abrams et al 1990). For example, plants in dry regions tend to have small leaves compared to plants from humid areas (McDonald et al 2003).…”

Section: Communicated By Gesslermentioning

confidence: 99%

Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

Diatta

Kjær

Diallo

et al. 2021

Trees

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Key message Leaf morphology, total leaf nitrogen (N) content and carbon and nitrogen isotope ratios of Acacia senegal trees vary among ploidy levels and geographic origins. Leaf morphology was significantly correlated with carbon isotope composition (δ13C) among diploid trees, while a significant correlation was observed with nitrogen isotope composition (δ15N) among tetraploid trees. Abstract Leaf morphology and ploidy level can influence plants' ability to adapt to climatic conditions. Here we study Acacia senegal that has multiple ploidy levels and grows across a geographic range of mainly dry environments. We test if and how ploidy level and climate at the site of origin influence leaf shape and ratios of stable carbon and nitrogen isotopes of A. senegal. The study is based on leaves collected from 225 A. senegal trees representing 16 populations across the species range, grown in a common garden trial in Senegal. Leaf morphological parameters were measured, and ploidy level, total leaf nitrogen (N), carbon isotope ratios (δ13C) and nitrogen isotope ratios (δ15N) were determined. Three levels of ploidy were found, namely diploid, triploid and tetraploid, but at highly different frequencies among the 16 origins. Leaf morphology varied significantly among both geographic origins and ploidy levels, with especially triploid trees having distinct leaf shapes. Tetraploids displayed high δ13C and low δ15N values compared to diploids. For diploids, leaf length and number of leaflets were correlated with precipitation and latitude, respectively. Leaf morphology and isotopic discrimination in A. senegal vary according to ploidy level and geographic origin. Our analysis suggests that the differences likely reflect adaptation to different environments, but the patterns tend to differ between diploids and tetraploids.

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Section: Communicated By Gesslermentioning

confidence: 99%

Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

Diatta

Kjær

Diallo

et al. 2021

Trees

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“…Their dimensions and shape characteristics in the same tree/shrub depend on the position on the long-versus short-shoot and the central versus basal and/or apical position on the shoot, as well as exposure to sun radiation (Jentys-Szaferowa, 1970;Wójcicki, 1997;Jasińska et al, 2015Jasińska et al, , 2021. In the case of Rhododendron, the local environment can influence the variation among individuals (Koksheeva et al, 2017;Sosnovsky et al, 2017Sosnovsky et al, , 2021. The influences of different position in the crown and level of radiation can be omitted or at least strongly reduced when leaves are sampled from the central part of shoots exposed to sunlight, from individuals evenly dispersed within the population.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic differentiation of Rhododendron ferrugineum populations in European mountains

Lewandowska¹,

Boratyńska²,

Marcysiak³

et al. 2022

Dendrobiology

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Rhododendron ferrugineum occurs in the mountains of the Central Europe with large disjunction in geographic range between Pyrenees and Alps and between Alps and Sudetes. We expect that these discontinuities in the species occurrence should involved their phenotypic differentiation, similar as described on the studies of molecular markers. The aim of the study was verification of phenotypic differences between the species populations from the Pyrenees, Alps and Sudetes. We examined characters of leaves and capsules from 13 populations, each represented by 25–30 individuals, using ANOVA, discrimination analysis, principal components analysis and agglomeration on the closest Euclidean distances. Every from examined characters of leaves and capsules except of apex angle of a capsule valve and capsule valve shape differentiated between populations at P≤0.001. Despite, range of character variation differentiating even at the highest level overlapped between populations. The analysis of discrimination, principal component analysis and agglomeration gave similar results indicating differences between populations from Pyrenees, Alps and Sudetes. However, the differences between individuals did not allow distinguish regions. The morphological characteristics of the leaves and capsules allowed to distinguish among populations of R. ferrugineum from the Pyrenees, Alps and Sudetes, and the pattern of their phenotypic differentiation was similar to that described based on genetic markers. The relict population from the Sudetes is phenotypically more similar to the populations from the Pyrenees and the Western Alps than to the spatially closest populations from the Eastern Alps.

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Correction to: Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

Diatta

Kjær

Diallo

et al. 2021

Trees

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Relationships between leaf shape and climate in Rhododendron mucronulatum

Cited by 8 publications

References 22 publications

Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

Phenotypic differentiation of Rhododendron ferrugineum populations in European mountains

Correction to: Leaf morphology and stable isotope ratios of carbon and nitrogen in Acacia senegal (L.) Wild trees vary with climate at the geographic origin and ploidy level

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