The redundancy effect under morphogenetic and environmental fluctuations. The case of the<i>Dianthus pungens</i>group

Castro, Isaura; Rocha, J.S.R.; Martins, Maria Castro; Carnide, V.; Martín, Juan José Molina; Veiga, Pedro; Serafim, Ana Beatriz; Amich, Francisco; Ramírez-Rodríguez, Rubén; Colombo, Giacomo; Crespí, António L.

doi:10.1080/11263504.2020.1857864

Cited by 7 publications

(10 citation statements)

References 69 publications

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“…These results are in line with those obtained for Baldellia, Dianthus, Scilla, or Ononis, in the same area (Rocha et al 2012b;Almeida da Silva et al 2014;Rocha et al 2018;Castro et al , 2020. In these cases, morphological fluctuations also overlapped, and no significance was detected for their environmental characterization either.…”

Section: Discussionsupporting

confidence: 90%

“…A fluctuating asymmetry (FA) analysis was necessary to describe the morphological responses of individuals to the environmental variability (Castro et al 2020). The FA value per Gr was obtained by calculating the difference between the environment and the morphological amplitudes and correlations.…”

Section: Fluctuating Asymmetry (Fa)mentioning

confidence: 99%

“…In our case, FA was used to describe the relationship between the environmental variability (amplitude and correlation) involved (Klingenberg et al 2019), and the morphological response detected (amplitude and correlation). A similar approach, in this case for group Dianthus pungens L., was applied for Castro et al (2020). Thus, the numerical value of FA will reflect the relationship between morpho-environmental amplitudes (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Phenotypic strategies for Jasione L. or the challenge that taxonomy face to recent floristic responses along western Eurasia

2021

Turk J Bot

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Jasione L. (Campanulaceae) is regarded as one of the recent floristic responses in western Eurasia. The characterization of the morpho-environmental fluctuating asymmetries (FA) to describe the phenotypic responses for Jasione L. is here exposed. Continuity is pointed out to describe these morpho-environmental responses, as a redundancy effect (RE), in accordance with the significant similarity involved. In this case, 327 individuals and 14 species were investigated ( J. sphaerochephala Brullo, Marcenò & Pavone and J. idaea Stoj. synonymized as J. montana L. var. montana and J. supina Sieber ex Spreng. subsp. pontica (Boiss.) Damboldt). J. montana L. and J. heldreichii Boiss. & Orph. showed the highest comprehensive morphological response, while more important divergence was observed in J. foliosa Cav. and J. mansanetiana Roselló & Peris. No significant difference wasobtained by the morphological approach without taxonomic differentiation. Six morphogroups (Grs) were detected, and only one (Gr6) showed lower morphoenvironmental instability (50% RE). Germoplasmic accommodation was observed during the interglacial and glacial periods along the SW distribution range of the genus.The lack of target phenotype must be the consequence of the intense alterations of potential distributions in Jasione since its origin. J. montana and J. heldreichii showed agglomerative phenotypes characteristics.

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Section: Discussionsupporting

confidence: 90%

Section: Fluctuating Asymmetry (Fa)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phenotypic strategies for Jasione L. or the challenge that taxonomy face to recent floristic responses along western Eurasia

2021

Turk J Bot

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“…Franco (Bernal & al., 1990) in the Iberian Peninsula, as well as numerous cases of putatively different taxa recorded over elevation gradients, e.g., within D. pungens L. (Crespí & al., 2007) and D. virgineus L. (Bacchetta & al., 2010). Phenotypic variation is likely linked to environmental fluctuations that occurred over the evolutionary history of these species (Rocha & al., 2017; Castro & al., 2022). Such resilient responses to environmental fluctuations greatly encumber delineation of morphological boundaries among Dianthus taxa (Castro & al., 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Phenotypic variation is likely linked to environmental fluctuations that occurred over the evolutionary history of these species (Rocha & al., 2017; Castro & al., 2022). Such resilient responses to environmental fluctuations greatly encumber delineation of morphological boundaries among Dianthus taxa (Castro & al., 2022).…”

Section: Introductionmentioning

confidence: 99%

Phenotypic correlates of genetic divergence suggest at least three species in the complex of Dianthus virgineus (Caryophyllaceae)

Gargano,

Franzoni,

Luqman

et al. 2023

TAXON

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Dianthus virgineus encompasses a very complex taxonomic group (traditionally called D. sylvestris group) including an array of units of doubtful taxonomic rank and value. Recent work identified three genetic lineages within this complex that showed strong genetic isolation, and clear geographical boundaries (i.e., “Alpine”, “Balkan”, and “Apennine” lineages). We evaluated the contribution of 33 morphological characters in differentiating such genetic units, by also investigating the effect of geographical and ecological drivers on the characters showing major discriminating power. The morphological measures were taken from a large number of populations (N = 97) included in the sample used for detecting the three genetic lineages. Our work reveals that these lineages can be morphologically discriminated by a series of character‐states that are traditionally considered of relevant taxonomical value. We also inferred a significant geographical and ecological effect on most characters, which varied gradually with latitude, longitude, and mean annual temperature. Overall, our data suggest that the three biological units can be referred to D. inodorus (L.) Gaertn. (“Alpine” lineage), D. sylvestris Wulfen (“Balkan” lineage), and D. virgineus L. s.str. (“Apennine” lineage). We also provide an identification key to discriminate these three taxa.

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Different species or altitudinal morphotypes? Testing the taxonomic value of Dianthus brachycalyx (Caryophyllaceae)

Franzoni,

Astuti,

Bartolucci

et al. 2024

TAXON

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Defining species boundaries within plant groups distributed along wide elevational and geographic gradients may lead to unstable taxonomic delimitations using morphological data only. Within the taxonomically challenging genus Dianthus, through an integrative approach we tested the taxonomic value of D. brachycalyx, a putative species endemic to mountain peaks of the central‐southern Apennines, with respect to the widespread central‐Mediterranean D. virgineus. We measured 30 morphological characters in 452 individuals from 25 populations and obtained 3202 single nucleotide polymorphisms using ddRAD‐seq techniques in 394 individuals from 36 populations. For climatic niche comparison, we built a dataset of 348 occurrence points. By comparing morphometric, genetic, and climatic niche data, we showed that D. brachycalyx cannot be considered a distinct species. Morphometric separation between the two species is detectable, but high‐elevation populations of D. virgineus are similar to D. brachycalyx. Genetic analyses revealed that the genetic structure of populations of D. brachycalyx and D. virgineus is mainly shaped by isolation‐by‐distance, irrespective of their taxonomic attribution. The climatic niches of the two species are overlapping, and the niche differences are just due to different availability of climatic conditions in their ranges. Accordingly, multiple lines of evidence do not support a separation of D. brachycalyx from D. virgineus, and the former should be considered a heterotypic synonym of the latter.

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The redundancy effect under morphogenetic and environmental fluctuations. The case of theDianthus pungensgroup

Cited by 7 publications

References 69 publications

Phenotypic strategies for Jasione L. or the challenge that taxonomy face to recent floristic responses along western Eurasia

Phenotypic strategies for Jasione L. or the challenge that taxonomy face to recent floristic responses along western Eurasia

Phenotypic correlates of genetic divergence suggest at least three species in the complex of Dianthus virgineus (Caryophyllaceae)

Different species or altitudinal morphotypes? Testing the taxonomic value of Dianthus brachycalyx (Caryophyllaceae)

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