Linaria becerrae (Plantaginaceae), a new endemic species from the southern Spain, and remarks on what Linaria salzmannii is and is not

Blanca, Gabriel; Cueto, Miguel; Fuentes, Julián

doi:10.11646/phytotaxa.298.3.5

Cited by 6 publications

(8 citation statements)

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“…spicata) but is now supported as a distinct species as a result of both taxa being independently derived in all phylogenetic analyses (Figs. 2,4a; see also Blanca et al 2017). A flower colour polymorphism within L. salzmannii (Boissier 1841;Sáez and Bernal 2009) is confirmed, as shown by the morphological and genetic similarity of the yellow-and purple-flowered morphs, and L. becerrae is well supported as distinct from L. salzmannii (Blanca et al 2017).…”

Section: Phenotypic Divergence and Convergence During Speciationmentioning

confidence: 84%

“…Versicolores and acronyms used hereafter in this paper are listed in Table 1 (Sáez and Bernal 145 2009;Vigalondo et al 2015;Blanca et al 2017; see Online Appendix 1). One of these taxa 146 has been treated as either a species or a subspecies (L. salzmannii or L. viscosa subsp.…”

Section: Study Systemmentioning

confidence: 99%

“…Versicolores (Fernández-Mazuecos et al 2013a). According to current taxonomic treatments, this clade comprises eight taxa endemic or sub-endemic to the Iberian Peninsula, in the western Mediterranean biodiversity hotspot (Sáez and Bernal 2009;Vigalondo et al 2015;Blanca et al 2017). This clade constitutes an excellent study system for the understanding of pollinator-driven floral evolution and speciation because it has high phenotypic diversity in floral traits promoting pollinator specialisation, including corolla tube width, corolla colour and nectar spur length (Fernández-Mazuecos et al 2013a).…”

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confidence: 99%

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Resolving Recent Plant Radiations: Power and Robustness of Genotyping-by-Sequencing

et al. 2017

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Disentangling species boundaries and phylogenetic relationships within recent evolutionary radiations is a challenge due to the poor morphological differentiation and low genetic divergence between species, frequently accompanied by phenotypic convergence, interspecific gene flow and incomplete lineage sorting. Here we employed a genotyping-by-sequencing (GBS) approach, in combination with morphometric analyses, to investigate a small western Mediterranean clade in the flowering plant genus Linaria that radiated in the Quaternary. After confirming the morphological and genetic distinctness of eight species, we evaluated the relative performances of concatenation and coalescent methods to resolve phylogenetic relationships. Specifically, we focused on assessing the robustness of both approaches to variations in the parameter used to estimate sequence homology (clustering threshold). Concatenation analyses suffered from strong systematic bias, as revealed by the high statistical support for multiple alternative topologies depending on clustering threshold values. By contrast, topologies produced by two coalescent-based methods (NJ$_{\mathrm{st}}$, SVDquartets) were robust to variations in the clustering threshold. Reticulate evolution may partly explain incongruences between NJ$_{\mathrm{st}}$, SVDquartets and concatenated trees. Integration of morphometric and coalescent-based phylogenetic results revealed (i) extensive morphological divergence associated with recent splits between geographically close or sympatric sister species and (ii) morphological convergence in geographically disjunct species. These patterns are particularly true for floral traits related to pollinator specialization, including nectar spur length, tube width and corolla color, suggesting pollinator-driven diversification. Given its relatively simple and inexpensive implementation, GBS is a promising technique for the phylogenetic and systematic study of recent radiations, but care must be taken to evaluate the robustness of results to variation of data assembly parameters.

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Section: Phenotypic Divergence and Convergence During Speciationmentioning

confidence: 84%

Section: Study Systemmentioning

confidence: 99%

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confidence: 99%

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Resolving Recent Plant Radiations: Power and Robustness of Genotyping-by-Sequencing

et al. 2017

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“…In fact, Linaria ranks fifth among the vascular plant genera with the highest numbers of endemic species in Iberia (Buira et al, 2016). The taxonomic complexity of the genus is shown by the fact that several new species and taxonomic rearrangements have been proposed shortly after the publication of the taxonomic account for Flora iberica (Blanca et al, 2017;Blanca et al, 2018;Fernández-Mazuecos et al, 2018;Juan et al, 2018;Vigalondo et al, 2015). The highest complexity is found in Linaria sect.…”

Section: Introductionmentioning

confidence: 99%

A new species of Linaria sect. Supinae from Sierra de Gredos (Sistema Central mountains, Iberian Peninsula)

Luceño

Fernández‐Mazuecos

Vargas

2019

abm

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Una especie nueva de Linaria sect. Supinae en la Sierra de Gredos (Sistema Central, Península Ibérica)Linaria vettonica Luceño, Mazuecos & P. Vargas, a new species of Linaria sect. Supinae, is described. It is a narrow endemic inhabiting the southern hills of the western and central massifs of Sierra de Gredos (Sistema Central mountains, Iberian Peninsula). The five populations found occur on siliceous, sandy soils of Quercus pyrenaica woodland clearings and slopes. L. vettonica can be distinguished from Linaria caesia by the densely glandular-pubescent inflorescence, dark purple corolla and brown seeds with tuberculate disc, and from L. aeruginea by its erect fertile stems and dark purple -never blackishcorolla.Key words: Linaria, Sierra de Gredos, narrow endemic, taxonomy, seed micromorphology. ResumenSe describe Linaria vettonica Luceño, Mazuecos & P. Vargas, una nueva especie de Linaria sect. Supinae. Se trata de un endemismo restringido que se distribuye por las vertientes meridionales de los macizos occidental y central de la Sierra de Gredos (Sistema Central, Península Ibérica). Las cinco poblaciones encontradas aparecieron sobre suelos arenosos silíceos en claros y laderas de bosques de Quercus pyrenaica. L. vettonica se distingue de L. caesia por sus inflorescencias densamente glandular-pubescentes, corolas de color púrpura oscuro y semillas marrones con disco ornamentado con numerosos tubérculos. De L. aeruginea se distingue por sus tallos fértiles erectos y sus flores de color púrpura oscuro, nunca negruzcas.Palabras clave: Linaria, sierra de Gredos, endemismo restringido, taxonomía, micromorfología de semillas.

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“…Misidentification of species has been reported in crops, including rice (Orjuela et al, 2014), yams (Girma et al, 2012), Brassica spp. (Mason et al, 2015), and also in other wild species (Blanca et al, 2017). Various genotyping methods based on molecular markers have been developed and implemented in species authentication (Semagn et al, 2012;Frey et al, 2013;Ertiro et al, 2015;Chen et al, 2016).…”

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confidence: 99%

Genotyping-by-Sequencing Derived Single Nucleotide Polymorphisms Provide the First Well-Resolved Phylogeny for the Genus Triticum (Poaceae)

et al. 2020

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Wheat (Triticum spp.) has been an important staple food crop for mankind since the beginning of agriculture. The genus Triticum L. is composed of diploid, tetraploid, and hexaploid species, majority of which have not yet been discriminated clearly, and hence their phylogeny and classification remain unresolved. Genotyping-by-sequencing (GBS) is an easy and affordable method that allows us to generate genome-wide single nucleotide polymorphism (SNP) markers. In this study, we used GBS to obtain SNPs covering all seven chromosomes from 283 accessions of Triticum-related genera. After filtering low-quality and redundant SNPs based on haplotype information, the GBS assay provided 14,188 high-quality SNPs that were distributed across the A (71%), B (26%), and D (2.4%) genomes. Cluster analysis and discriminant analysis of principal components (DAPC) allowed us to distinguish six distinct groups that matched well with Triticum species complexity. We constructed a Bayesian phylogenetic tree using 14,188 SNPs, in which 17 Triticum species and subspecies were discriminated. Dendrogram analysis revealed that the polyploid wheat species could be divided into groups according to the presence of A, B, D, and G genomes with strong nodal support and provided new insight into the evolution of spelt wheat. A total of 2,692 speciesspecific SNPs were identified to discriminate the common (T. aestivum) and durum (T. turgidum) wheat cultivar and landraces. In principal component analysis grouping, the two wheat species formed individual clusters and the SNPs were able to distinguish up to nine groups of 10 subspecies. This study demonstrated that GBS-derived SNPs could be used efficiently in genebank management to classify Triticum species and subspecies that are very difficult to distinguish by their morphological characters.

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Linaria becerrae (Plantaginaceae), a new endemic species from the southern Spain, and remarks on what Linaria salzmannii is and is not

Cited by 6 publications

References 0 publications

Resolving Recent Plant Radiations: Power and Robustness of Genotyping-by-Sequencing

Resolving Recent Plant Radiations: Power and Robustness of Genotyping-by-Sequencing

A new species of Linaria sect. Supinae from Sierra de Gredos (Sistema Central mountains, Iberian Peninsula)

Genotyping-by-Sequencing Derived Single Nucleotide Polymorphisms Provide the First Well-Resolved Phylogeny for the Genus Triticum (Poaceae)

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