Pollen morphology of the genus Seseli L. (Umbelliferae) in Turkey

Güner, Ebru Doğan; Duman, Hayrí; Pınar, Nur Münevver

doi:10.3906/bot-0906-70

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…The pollen grains of the two Apiaceae genera endemic to Madeira ( Melanoselinum and Monizia ) fit the pattern found in the members of this stenopalynous plant family. In general, pollen grains of Apiaceae are tricolporate, with shape varying from prolate to perprolate, and the ornamentation is generally striate or reticulate, more rarely rugulate, perforate or pertectate (Dogan Guner et al 2011; Baczynski et al 2021). The two study species showed significant differences in pollen grain morphology (P and E) and ornamentation that allows their discrimination.…”

Section: Discussionmentioning

confidence: 99%

Pollen morphology of the endemic genera of the Madeira archipelago, Portugal

et al. 2023

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This study presents the first palynological characterisation of the five endemic plant genera of the Madeira archipelago: Chamaemeles Lindl, Melanoselinum Hoffm., Monizia Lowe, Musschia Dumort and Sinapidendron Lowe. Pollen grain morphology of ten endemic species was studied using light and scanning electron microscopy techniques. The size and shape of pollen grains, the polar axis, the equatorial diameter, and the exine ornamentation were measured and described. We found that the pollen grains of the five endemic genera are all medium-size monads. The close relative apiaceous Melanoselinum and Monizia differ in polar (P) and equatorial (E) diameter size and exine ornamentation while Sinapidendron species show differences in P, E, and P/E ratios. The pollen grains of the two Musschia species are very similar to each other, but differ in morphology and ornamentation from the Macaronesian endemic bellflowers Azorina vidalii and Canarina canariensis. This study unveiled differences between the endemic taxa and with their close related species, thus providing support to previous taxonomic findings.

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Section: Discussionmentioning

confidence: 99%

Pollen morphology of the endemic genera of the Madeira archipelago, Portugal

et al. 2023

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“…In this study, the pollen morphology of 17 taxa (18 accessions) of the family Apiaceae (13 Daucus and 4 non-Daucus taxa) was determined, of which 13 taxa (11 Daucus and 2 non-Daucus) were examined for the first time. In all taxa, tricolporate and prolate-perprolate-shaped pollen were observed, which is a common feature of the pollen grains of Apiaceae [48][49][50][51][52].…”

Section: Discussionmentioning

confidence: 99%

Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae)

2022

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Background The genus Daucus (Apiaceae) comprises about 40 wild species and the cultivated carrot, a crop of great economic and nutritional importance. The rich genetic diversity of wild Daucus species makes them a valuable gene pool for carrot improvement breeding programs. Therefore, it is essential to have good knowledge of the genome structure and relationships among wild Daucus species. To broaden such knowledge, in this research, the nuclear DNA content for 14 Daucus accessions and four closely related species was estimated by flow cytometry and their pollen morphology was analyzed by light and scanning electron microscopy (SEM). Results The flow cytometric analysis showed a 3.2-fold variation in the mean 2C values among Daucus taxa, ranging from 0.999 (D. carota subsp. sativus) to 3.228 pg (D. littoralis). Among the outgroup species, the mean 2C values were 1.775–2.882 pg. The pollen grains of Daucus were tricolporate, mainly prolate or perprolate (rarely) in shape, and mainly medium or small (rarely) in size (21.19–40.38 µm), whereas the outgroup species had tricolporate, perprolate-shaped, and medium-sized (26.01–49.86 µm) pollen grains. In the studied taxa, SEM analysis revealed that exine ornamentation was striate, rugulate, perforate, or the ornamentation pattern was mixed. At the time of shedding, all pollen grains were three-celled, as evidenced by DAPI staining. We also found high positive correlations between the length of the polar axis (P) and the length of the equatorial diameter (E) of pollen grains, as well as between P and P/E. However, when comparing cytogenetic information with palynological data, no significant correlations were observed. Conclusions This study complements the information on the nuclear DNA content in Daucus and provides comprehensive knowledge of the pollen morphology of its taxa. These findings may be important in elucidating the taxonomic relationships among Daucus species and can help in the correct identification of gene bank accessions. In a broader view, they could also be meaningful for the interpretation of evolutionary trends in the genus.

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“…Pollen morphology has provided a useful tool in circumscribing the genera of the Brassicaceae (Erdtman 1963;Sharma and Nair 1973;Carter et al 1975;Moore and Webb 1978;Jonsell 1986;Do� gan and _ Inceo� glu 1990;Brochmann 1992;Reile 1992;Abdel Khalik et al 2002;Khan 2004;Perveen et al 2004;Pinar et al 2009;Keshavarzi et al 2012;Mutlu and Erik 2012;Sagun and Auer 2017;Bas ¸er et al 2018;Karami 2023, 2022) and a wealth of information has been published on the phylogeny of the Brassicaceae (Al-Shehbaz et al 2006;Beilstein et al 2006;German et al 2009;Khosravi et al 2009;Couvreur et al 2010;Warwick et al 2010;Zhao et al 2010;Hendriks et al 2022). Mostly, Brassicaceae have only tricolpate pollen (Erdtman 1972), but preliminary surveys (e.g.…”

Section: Introductionmentioning

confidence: 99%

Pollen morphology of Matthiola and the related genus Dvorakia (Brassicaceae) in Iran

Karami,

Ranjbar

2023

Palynology

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Our study focused on the pollen morphology of 13 species of Matthiola and the closely related genus Dvorakia. We used light and scanning electron microscopes to examine the importance of pollen characteristics in classifying these genera. Pollen grains were acetolysed, measured, photographed, and described based on qualitative and quantitative characteristics. Here, we present statistical analyses and multivariate statistics for quantitative data. Pollen in both genera are tricolpate and varies in shape from subprolate to prolate. We distinguish two pollen types based on lumen width. Matthiola pollen has both reticulate and macroreticulate ornamentation, while Dvorakia alyssifolia pollen is reticulate. The thickness of the exine and the width of the mesocolpium are important traits in addition to exine ornamentation. Iranian Dvorakia and Matthiola species' pollen size can be divided into four types, one of which is Type I (Dvorakia alyssifolia type). Among the examined species, M. tomentosa has the smallest pollen grains, while D. alyssifolia has the largest grains. Pollen morphology confirms the transfer of D. alyssifolia from Matthiola to Dvorakia. Additionally, we propose a species key for the genera.

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Pollen morphology of the genus Seseli L. (Umbelliferae) in Turkey

Cited by 11 publications

References 12 publications

Pollen morphology of the endemic genera of the Madeira archipelago, Portugal

Pollen morphology of the endemic genera of the Madeira archipelago, Portugal

Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae)

Pollen morphology of Matthiola and the related genus Dvorakia (Brassicaceae) in Iran

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