Plant Genetic Diversity and Plant–Pollinator Interactions Along Altitudinal Gradients

Itino, Takao; Hirao, Akira S.

doi:10.1007/978-4-431-55954-2_4

Cited by 4 publications

(3 citation statements)

References 102 publications

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“…Indeed, pollinator and non-pollinator agents often drive floral adaptation in different directions (Armbruster et al 1997;Strauss & Whittall 2006). Therefore, to understand the relative importance of pollinator and non-pollinator agents and to elucidate how pollinators influence floral trait evolution, we should focus not on a single plant species but on multiple sympatric species (Itino & Hirao 2016). Furthermore, comparisons of related plant species may facilitate the detection of factors affecting floral trait variation (Whittall & Hodges 2007;Ollerton et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Pattern of flower size variation along an altitudinal gradient differs between Impatiens textori and Impatiens noli-tangere

Hattori

Nagano

Shinohara

et al. 2016

Journal of Plant Interactions

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Studies of factors influencing spatial variation in flower size offer insights into floral evolution. We investigated altitudinal variations in five flower dimensions of two native Japanese Impatiens species (I. textori and I. noli-tangere) and their interactions with their faunal visitors. These two species have similar floral traits, including flower shape, flowering time, and pollinator species; both species are pollinated mainly by Bombus diversus. In I. textori, all measured flower dimensions were negatively correlated with altitude. In contrast, in I. noli-tangere, no measured flower dimensions correlated with altitude. Thus, the altitudinal pattern of flower size variation differed between these congeneric co-habiting herbaceous plant species. The different patterns suggest that the factors (e.g. altitudinal variations of abiotic factors) that cause variation of flower size differ between these two Impatiens species even though focal species have similar floral traits (e.g. flower shape, flowering time, and pollinator species).ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Pattern of flower size variation along an altitudinal gradient differs between Impatiens textori and Impatiens noli-tangere

Hattori

Nagano

Shinohara

et al. 2016

Journal of Plant Interactions

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“…Moreover, elevational gradients are much shorter than latitudinal ones, and thus gene flow between populations is more likely (Hahn et al, 2012 ; Halbritter et al, 2015 ). Four patterns of genetic diversity along elevational gradients have been found (Itino & Hirao, 2016 ; Ohsawa & Ide, 2008 ): (1) Populations at intermediate elevations have higher genetic diversity than populations at both higher and lower elevations because conditions at intermediate (i.e. “central”) elevations are optimal, whereas populations at the lower and upper elevation edges are more affected by restricted gene flow, genetic drift and founder effects, leading to reduced genetic diversity (Byars et al, 2009 ; Herrera & Bazaga, 2008 ; Meng et al, 2019 ; Ohsawa et al, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

“…Finally, genetic diversity may be unrelated to elevation due to extensive gene flow or random variation caused by strong local factors (Hahn et al, 2012 ; Halbritter et al, 2015 ). Reviews of studies on genetic diversity along elevational gradients have found no general patterns (Itino & Hirao, 2016 ; Ohsawa & Ide, 2008 ), and little is known about whether latitudinal and elevational gradients in environmental conditions have similar effects on the genetic structure and diversity of a plant species. A better understanding of patterns of genetic diversity and differentiation along these gradients is important because genetic diversity will determine the potential of populations to adapt to ongoing global change (Jump et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and differentiation of populations of Anthyllis vulneraria along elevational and latitudinal gradients

Daco

Matthies

Hermant

et al. 2022

Ecology and Evolution

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The abundant centre model (ACM) predicts that the suitability of environmental conditions for a species decreases from the centre of its distribution toward its range periphery and, consequently, its populations will become scarcer, smaller and more isolated, resulting in lower genetic diversity and increased differentiation. However, little is known about whether genetic diversity shows similar patterns along elevational and latitudinal gradients with similar changes in important environmental conditions. Using microsatellite markers, we studied the genetic diversity and structure of 20 populations each of Anthyllis vulneraria along elevational gradients in the Alps from the valleys to the elevational limit (2500 m) and along a latitudinal gradient (2500 km) from Central Europe to the range margin in northern Scandinavia. Both types of gradients corresponded to an 11.5°C difference in mean annual temperature. Genetic diversity strongly declined and differentiation increased with latitude in line with the predictions of the ACM. However, as population size did not decline with latitude and genetic diversity was not related to population size in A. vulneraria , this pattern is not likely to be due to less favorable conditions in the North, but due to serial founder effects during the post‐glacial recolonization process. Genetic diversity was not related to elevation, but we found significant isolation by distance along both gradients, although the elevational gradient was shorter by orders of magnitude. Subarctic populations differed genetically from alpine populations indicating that the northern populations did not originate from high elevational Alpine ones. Our results support the notion that postglacial latitudinal colonization over large distances resulted in a larger loss of genetic diversity than elevational range shifts. The lack of genetic diversity in subarctic populations may threaten their long‐term persistence in the face of climate change, whereas alpine populations could benefit from gene flow from low‐elevation populations.

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Sympatric co-existence of two ecotypes of Impatiens noli-tangere (Balsaminaceae) with different morphology and flowering phenology

et al. 2023

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Plant Genetic Diversity and Plant–Pollinator Interactions Along Altitudinal Gradients

Cited by 4 publications

References 102 publications

Pattern of flower size variation along an altitudinal gradient differs between Impatiens textori and Impatiens noli-tangere

Pattern of flower size variation along an altitudinal gradient differs between Impatiens textori and Impatiens noli-tangere

Genetic diversity and differentiation of populations of Anthyllis vulneraria along elevational and latitudinal gradients

Sympatric co-existence of two ecotypes of Impatiens noli-tangere (Balsaminaceae) with different morphology and flowering phenology

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