Effect of a red oak species gradient on genetic structure and diversity of Quercus castanea (Fagaceae) in Mexico

Valencia-Cuevas, Leticia; Piñero, Daniel; Mussali-Galante, Patricia; Valencia-Ávalos, Susana; Tovar-Sánchez, Efraı́n

doi:10.1007/s11295-014-0710-8

Cited by 28 publications

(36 citation statements)

References 79 publications

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“…The balance achieved by a population among these factors determines its special genetic structure (Valencia-Cuevas et al, 2014). Genetic structure can be associated with geographical region, climate conditions (Neophytou et al, 2010), hybridization (Curtu et al, 2014), breaking of primary reproductive barriers (Valencia-Cuevas et al, 2014), altitude, historical movements, evolution, phenology and seed dispersal over a large area by animals (Ohsawa et al, 2007;Zhang et al, 2013 andWang et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Morphological and Molecular Differentiation in Populations of Persian Oak (Quercus Brantii Lindl.) in Southwestern Iran

et al. 2017

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P ERSIAN oak (Quercus brantii Lindl.) is a common woody species in the Zagros forests of Iran. The current study evaluates the variation among the Q. brantii populations in the southwestern forests of Iran using amplified fragment length polymorphism (AFLP) and leaf morphology. A total of 135 trees were sampled from 27 populations representing nine regions in the provinces of Khuzestan (GOL, EMA, BAB, MOG, ALG), Chaharmahal and Bakhtiari (MON), Lorestan (KHA), Kohgiluyeh and Boyer-Ahmad (DIS) and Fars (BAA). Twelve morphological leaf traits were analyzed using PCA and Ward's clustering methods. The results of ANOVA showed significant differences between populations, but the PCA graph and clustering analysis could not separate the populations on the basis of leaf characteristics. An analysis of molecular variance indicated that most genetic variation was contained within populations (95%); differences between populations accounted for only 1% and 4% was attributed to variation between regions. The five regions of Khuzestan have similar genetic structures. This was observed for the regions in Fars, Lorestan and Chaharmahal and Bakhtiari. Region DIS of Kohgiluyeh and Boyer-Ahmad had a separate genetic structure. The Dendrogram of Quercus brantii populations based on AFLP marker and Cluster analysis of populations using Ward's method based on morphological data don't confirm each other and in both, populations mix together. The current study revealed the some morphological and molecular differences in some populations of Persian oak in Iran. Population genetic information can provide critical insights into range expansion and evolutionary potential to adapt to environmental changes.

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Section: Resultsmentioning

confidence: 99%

Morphological and Molecular Differentiation in Populations of Persian Oak (Quercus Brantii Lindl.) in Southwestern Iran

et al. 2017

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“…This is because many oak species can be considered foundation species due to their wide geographic distribution (Valencia 2004) and dominance in the canopy of forests (TovarSánchez et al 2013) and because they are habitat to different species. They also show a high frequency of natural hybridization (Curtu et al 2007;Peñaloza-Ramírez et al 2010;Valencia-Cuevas et al 2015), a condition that can promote an increase in genetic diversity (Tovar-Sánchez et al 2008;Valencia-Cuevas et al 2014) and the appearance of new features in host plants (Tovar-Sánchez and Oyama 2004) which can be exploited by arthropod communities. However, to date, there are few studies that have evaluated the structure of arthropod communities associated with the canopy of oaks from a genetic perspective.…”

Section: Reviewmentioning

confidence: 99%

Oak canopy arthropod communities: which factors shape its structure?

Valencia-Cuevas

Tovar-Sánchez

2015

Rev. Chil. de Hist. Nat.

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Canopy of forest ecosystems has been recognized as a habitat that supports a wide variety of plants, vertebrates, invertebrates, and microbes. Within the invertebrate group, arthropods are characterized by their great abundance, diversity, and functional importance. Particularly in temperate forests, species of the genus Quercus (oaks) are one of the most important tree canopy groups, for its diversity and dominance. Different studies have shown that the oak canopy contains a high diversity of arthropods suggesting their importance as habitat for this group of organisms. In this review, we investigated the factors that determine the establishment, organization, and maintenance of arthropod communities in the oak canopy. In general, it was found that there is a lack of literature that addresses the study of oak canopy arthropod communities. Also, the following patterns were found: (a) the research has covered a wide variety of topics; however, there are differences in the depth to which each topic has been analyzed, (b) there are ambiguous criteria to define the structure of the canopy, (c) groups with different habitat preferences belonging to different guilds and uneven development stages have been studied, avoiding generalizations about patterns found, (d) the standardization in sampling techniques and collection has been difficult, (e) bias exists towards the study of phytophagous insects belonging to the Coleoptera, Hymenoptera, and Lepidoptera orders, and (f) there are few studies in other groups of arthropods, for example, acorn borers, whose activity has an impact on the fitness and dispersion of the host plants. Finally, we propose that the detection and study of patterns in oak canopy communities can be of great value to propose management and conservation strategies in these forests.

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“…Oaks (Fagaceae, Quercus) are an ideal system to study the effects of host-plant species genetic diversity on their associated canopy communities because of their high levels of genetic variation (e.g., Tovar-Sánchez et al 2008;Valencia-Cuevas et al 2014, 2015; many of their species show a wide geographical distribution and canopy dominance (Valencia 2004), and constitute the habitat of different species. Therefore, some of them can be considered as foundation species.…”

Section: Introductionmentioning

confidence: 99%

Effect of host-plant genetic diversity on oak canopy arthropod community structure in central Mexico

Tovar-Sánchez

Valencia-Cuevas

Mussali-Galante

et al. 2015

Rev. Chil. de Hist. Nat.

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Background: Recently it has been proposed that the genetic diversity of foundation species influences the structure and function of the community by creating locally stable conditions for other species and modulating ecosystem dynamics. Oak species are an ideal system to test this hypothesis because many of them have a wide geographical distribution, and they are dominant elements of the forest canopy. In this study we explored the response of canopy arthropod community structure (diversity and biomass) to the level of genetic diversity of Quercus crassipes and Q. rugosa, two important canopy species. Also, we examined the effect of oak species and locality on some community structure parameters (diversity, biomass, rare species, and richness of arthropod fauna) of canopy arthropods. In total, 160 canopies were fogged in four localities at the Mexican Valley (ten trees per species per locality per season). Results: Q. crassipes registered the highest number of rare species, diversity index, biomass, and richness in comparison with Q. rugosa. We found a positive and significant relationship between genetic diversity parameters and canopy arthropod diversity. However, canopy arthropod biomass registered an inverse pattern. Our results support the hypothesis that the genetic diversity of the host-plant species influences the assemblage of the canopy arthropod community. Conclusions: The pattern found in our study provides a powerful tool when trying to predict the effects of the genetic diversity of the host-plant species on different community structure parameters, which permits assignment of a new conservation status to foundation species based on their genetic diversity.

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Effect of a red oak species gradient on genetic structure and diversity of Quercus castanea (Fagaceae) in Mexico

Cited by 28 publications

References 79 publications

Morphological and Molecular Differentiation in Populations of Persian Oak (Quercus Brantii Lindl.) in Southwestern Iran

Morphological and Molecular Differentiation in Populations of Persian Oak (Quercus Brantii Lindl.) in Southwestern Iran

Oak canopy arthropod communities: which factors shape its structure?

Effect of host-plant genetic diversity on oak canopy arthropod community structure in central Mexico

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