Microthlaspi erraticum (Jord.) T. Ali et Thines has a wide distribution, ranging from the Alps to the Tien Shan

Ali, Tahir; Runge, Fabian; Dutbayev, Ayan; Schmuker, Angelika; Solovyeva, Irina; Nigrelli, Lisa; Buch, Ann-Katrin; Xia, Xiaojuan; Ploch, Sebastián; Orren, Ouria; Kummer, Volker; Paule, Juraj; Ҫelik, Ali; Vakhrusheva, L. P.; Gabrielyan, Ivan; Thines, Marco

doi:10.1016/j.flora.2016.09.008

Cited by 12 publications

(11 citation statements)

References 17 publications

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“…Fungal material originated from a previous study (Glynou et al., ) on the diversity of endophytic fungi associated with roots of the brassicaceous plants Microthlaspi erraticum and Microthlaspi perfoliatum (Ali, Runge et al., ; Ali, Schmuker et al., ). In that study, a collection of 2,006 fungal cultures was generated after the cultivation of surface‐sterilized root segments from plants in 52 populations, distributed across northern Mediterranean and central Europe (Figure ).…”

Section: Methodsmentioning

confidence: 99%

Genotypic diversity in root‐endophytic fungi reflects efficient dispersal and environmental adaptation

et al. 2017

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Studying community structure and dynamics of plant-associated fungi is the basis for unravelling their interactions with hosts and ecosystem functions. A recent sampling revealed that only a few fungal groups, as defined by internal transcribed spacer region (ITS) sequence similarity, dominate culturable root endophytic communities of nonmycorrhizal Microthlaspi spp. plants across Europe. Strains of these fungi display a broad phenotypic and functional diversity, which suggests a genetic variability masked by ITS clustering into operational taxonomic units (OTUs). The aims of this study were to identify how genetic similarity patterns of these fungi change across environments and to evaluate their ability to disperse and adapt to ecological conditions. A first ITS-based haplotype analysis of ten widespread OTUs mostly showed a low to moderate genotypic differentiation, with the exception of a group identified as Cadophora sp. that was highly diverse. A multilocus phylogeny based on additional genetic loci (partial translation elongation factor 1α, beta-tubulin and actin) and amplified fragment length polymorphism profiling of 185 strains representative of the five dominant OTUs revealed a weak association of genetic differences with geography and environmental conditions, including bioclimatic and soil factors. Our findings suggest that dominant culturable root endophytic fungi have efficient dispersal capabilities, and that their distribution is little affected by environmental filtering. Other processes, such as inter- and intraspecific biotic interactions, may be more important for the local assembly of their communities.

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Section: Methodsmentioning

confidence: 99%

Genotypic diversity in root‐endophytic fungi reflects efficient dispersal and environmental adaptation

et al. 2017

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“…Torres-Suárez (2014) tested the utility of the CBC species concept and determined that CBCs can be used for generic delimitation as well. On the basis of Torres-Suárez (2014) findings, only one CBC, between the outgroup and the tribe Coluteocarpeae, indicates that Noccaea sensu Al-Shehbaz (2014) was more acceptable despite of some studies (Ali et al, 2016a;2016b;Karaismailoğlu and Erol, 2018; https://brassibase.cos.uni-heidelberg.de/, accessed 27 August 2019) which disagree with generic delimitation of Al-Shehbaz (2014). This finding is also supported by previous studies (German, 2017;Özgişi, 2018a;Özgişi et al, 2018b;Güzel et al, 2018;Özüdoğru and German, 2018;Özüdoğru et al, 2019) which consider that Noccaea sensu Al-Shehbaz (2014) is more acceptable.…”

Section: Discussionmentioning

confidence: 99%

“…However, the generic classification of Coluteocarpeae remains controversial. While some researchers (Özgişi et al, 2018a;Özgişi et al, 2018b;Güzel et al, 2018;Özüdoğru, 2018) have accepted the concept of Al-Shehbaz (2014), others (Ali et al, 2016a;2016b;Karaismailoğlu and Erol, 2018;; https://brassibase. cos.uni-heidelberg.de/, accessed 27 August 2019) have chosen to follow different concepts.…”

Section: Introductionmentioning

confidence: 99%

Structural characterization of ITS2 and CBC species concept applications in the tribe Coluteocarpeae (Brassicaceae)

Özgi̇şi¹

2020

Turk J Bot

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The taxonomic utility of internal transcribed spacer 2 (ITS2) secondary structures in different plant groups, as well as in Brassicaceae, has been addressed by many studies. Although characterization and applications of ITS2 secondary structures for the members of main Brassicaceae lineages (Lineages I, II, III, and expanded Lineage II) have been studied, the utility of compensatory base change (CBC) species concept has not been the subject of any studies thus far. In the current study, the ITS2 secondary structures of 49 Coluteocarpeae (expanded Lineage II) specimens were investigated to determine relationships among the species. In addition to the utility of the CBC species concept, the availability of hemi-CBC and nonstructural substitutions (NSTs), which are also used for generic and species delimitation, were tested and discussed. A maximum likelihood tree, based on the sequence-structural alignment of the 49 specimens, was constructed to test the different generic assumptions reported by different researchers in the literature. The structural analysis showed that the ITS2 secondary structures of all of the Coluteocarpeae members exhibited a 4-fingered hand model, which was common in the majority of the family members. No CBCs were observed, whereas hemi-CBCs and NSTs were common among the tribe members. Although hemi-CBCs and NSTs were useful for distinguishing most of the Coluteocarpeae species (Noccaea aptera (Velen.) F.K. Mey., Noccaea aghrica (P.H. Davis & Kit Tan) M. Fırat & Özüdoğru, Noccaea fendleri (A.Gray) Holub subsp. glauca (A. Nelson) Al-Shehbaz & M. Koch, Noccaea griffithiana (Boiss.) F.K. Mey., Noccaea rubescens (Schott & Kotschy ex Boiss.) F.K. Mey., etc.), they were not effective for delimitating some problematic species, such as members of Thlaspiceras F.K. Mey. A phylogenetic tree based on the sequence-structural dataset of the ITS2 showed that generic delimitation of Al-Shehbaz was more acceptable due to the fact that Noccaea sensu Al-Shehbaz is monophyletic.

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“…2014). As a result, while the classical contraction-expansion paradigm (Hewitt, 1996) can serve as a robust model for explaining observed patterns in widespread woody or herbaceous plant species (Taberlet et al, 1998;Nieto Feliner, 2014) it can not be generalized to southern European lineages which are influenced more by complex local dynamics (Nieto Feliner, 2014;Ali et al, 2016Ali et al, , 2019.…”

Section: Discussionmentioning

confidence: 99%

“…What studies there are, concentrate mostly on the role of Anatolia as a refugium and center of diversity for widespread taxa that later recolonized Europe (Ansell et al, 2011;Ali et al, 2016;2019) and not on local forces that drive and shape diversification within Anatolia or the Eastern Medditerenean at large. In conclusion, Anatolia can be regarded as a biogeographically exciting but under-explored region (Ansell et al, 2011) with no study to date providing a comprehensive breakdown of historical, evolutionary and ecological factors shaping diversification of a East Mediterranean genus and all its species.…”

Section: Introductionmentioning

confidence: 99%

Ecological specialization promotes diversity and diversification in the East Mediterranean genusRicotia(Brassicaceae)

Özüdoğru

Karacaoğlu

Akaydın

et al. 2020

Preprint

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Despite its amazing biodiversity, the Eastern Mediterranean remains a highly understudied region especially when compared to the Western Mediterranean. Scarcity of such studies restrict our understanding of the processes shaping diversity across the entire Mediterranean. To this end we used a combination of molecular markers and presence/absence data from all species of the Eastern Mediterrranean genus Ricotia collected across its full geographic range to determine historical, ecological and evolutionary factors responsible for lineage-specific diversification in this genus. Network analysis based on nuclear ribosomal and chloroplast DNA revealed high genetic structure within all lineages and phylogenetic reconstructions based on the multispecies coalescent showed that within lineage diversification corresponded to the onset of the Mediterranean climate. Reconstruction of ancestral histories indicate the genus originated within Anatolia and slowly spread across the Eastern Mediterranean and Levant using the Taurus mountains. Ecological niche models based on climatic and environmental variables suggest local populations did not go through any major distributional shifts and have persisted in present day habitats since the LGM. Furthermore, niche differentiation tests revealed significant niche differences between closely related species and showed the main variables predicting species limits to be different for each species. Our results give crucial information on the patterns and processes shaping diversity in the Eastern Mediterranean and show the main factor promoting diversification to be local environmental dynamics and ecological specialization and not large scale latitudinal movements as often reported for southern Europe. By determining regional and global patterns of diversification in an eastern Mediterranean genus we further our understanding of the major trends influencing plant diversity in the Mediterranean basin as a whole.

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Microthlaspi erraticum (Jord.) T. Ali et Thines has a wide distribution, ranging from the Alps to the Tien Shan

Cited by 12 publications

References 17 publications

Genotypic diversity in root‐endophytic fungi reflects efficient dispersal and environmental adaptation

Genotypic diversity in root‐endophytic fungi reflects efficient dispersal and environmental adaptation

Structural characterization of ITS2 and CBC species concept applications in the tribe Coluteocarpeae (Brassicaceae)

Ecological specialization promotes diversity and diversification in the East Mediterranean genusRicotia(Brassicaceae)

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