Micromorphological and genetic molecular variations in some taxa of Asteraceae and its importance as grazing plants

Abdel-Hamid, Amal M. E.

doi:10.30848/pjb2020-4(9)

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…Also, the significance and usefulness of SEM in solving of taxonomic problems and in describing of taxa have been emphasized by many researchers (Heywood, 1971;Eroglu et al, 2022). However, there are few studies on the importance of achene micromorphology in the genus Artemisia (Boyko, 2013;Abdel-Hamid, 2020;Vakulenko et al, 2020;Al-Ajmi et al, 2021). In this study, Turkish Artemisia taxa have been examined for the first time.…”

Section: Discussionmentioning

confidence: 93%

“…Some morphological, anatomical, cytological and palynological studies on some taxa of the genus Artemisia have been made, so far ( Pınar & Adıgüzel, 1998;Nourbakhsh et al, 2008;Kursat & Civelek, 2011;Kurşat et al, 2011aKurşat et al, , 2011bTabur et al, 2012;Tabur et al, 2014;Kursat et al, 2014;Kurşat et al, 2015;Kurşat et al, 2018;Sancar et al, 2021). Also, morphological characters of the achenes have been taken into account for diagnosis of a small number ofArtemisia taxa in different countries (Boyko, 2013;Abdel-Hamid, 2020;Vakulenko et al, 2020;Al-Ajmi et al, 2021). However, the significance of the achene in the genus has often been ignored in Turkey, where is one of the centers of diversity for the genus.…”

Section: Introductionmentioning

confidence: 99%

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Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

KARAİSMAİLOĞLU,

ALKAN,

KÜRŞAT

et al. 2023

Preprint

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In the study, the achene macro and micro morphological characters of the genus Artemisia distributed in Turkey have been researched with the target to know systematically important carpological structures for the examined species. Color, shape and dimension of achene have macro-morphologically shown variations. The examined achenes are separated into 4 shapes; fusiform-oblong, oblong, oblong-ovate and ovate. Oblong-ovate is the most common type. However, oblong is typical form for A. abrotanum. Achene dimensions range from 0.62 mm to 2.48 mm in length, from 0.30 mm to 1.21 mm in width. As A. santonicum subsp. patens is of the largest achenes , A. annua and A. verloitorum have the smallest achenes. Also, carpopodium diameter vary between 0.10 mm and 0.19 mm. The largest carpopodium diameter is found in taxa A. fragrans and A. taurica var. vanensis , while the narrowest one is A. alpina species. Achene surfaces of the examined taxa are micro-morphologically assessed, and the substantial differences are noticeably detected on behalf of the surface structures for instance, surface ornamentation, anticlinal and periclinal cell walls, epidermal cells and presence of secondary structures of the achenes. Surface ornamentation is separated into 10 types: irregularly sulcate, regularly sulcate, ruminate, sulcate-scalariform, rugose, favulariate, slightly sulcate, alveolate, tuberculate and reticulate. The most common types are irregularly sulcate (in 7 taxa) and regularly sulcate (in 7 taxa), while ruminate (in A. abrotanum), rugose (in A. chamaemelifolia), favulariate (in A. arborescens), alveolate (in A. santonicum subsp. patens), tuberculate (in A. taurica var. vanensis) and reticulate (in A. bashkalensis) ornamentation types are found as taxon-specific. A percentage comparison of the elements in the achene pericarp of the studied taxa have performed with SEM-EDS. Accordingly, pericarps in taxa include C, Ca, K, Mg, Cl, Si, Na and S elements. The most common seen element is C, which ranges from 77.4 (in A. austriaca) to 96.2 (in A. absinthium). Na element is observed only in A. santonicum subspecies and A. arborescens species. On the other hand, S element is found in low amounts only in A. alpina species. In the taxonomy of the genus Artemisia, the achene morphological characters are very significant characteristics that disclose inter-specific relations among the examined taxa. Moreover, a dichotomous key is offered for the identification of the studied taxa based on achene characters.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

KARAİSMAİLOĞLU,

ALKAN,

KÜRŞAT

et al. 2023

Preprint

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“…Similarly, morphological and molecular markers among 64 Cucurbita pepo (Cucurbitaceae) were found as non-interchangeable approaches although they could be complementary to result in the comprehensiveness of data analysis (Yunli et al, 2020). Such comprehensive and accurate analysis was obtained when RAPD markers were used in a combination with some micromorphological markers to demonstrate the genetic relationship among several taxa of Asteraceae (Abdel-Hamid, 2020).…”

Section: Resultsmentioning

confidence: 99%

Molecular Profile of Cogongrass [Imperata cylindrica (L.) Raeusch] in Java Island Based on trnT(UGU)-trnL(UAA) IGS Sequences

Dwiati,

Rahmah,

Susanto

2023

Jurnal Biodjati

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Cogongrass is one of the top ten problem-causing weeds in the world that is invasively spread over many tropical and subtropical regions, including Java Island, the Republic of Indonesia. The wide distribution is possibly related to their adaptability to almost all terrestrial habitats from various altitudes, which may lead to a high level of genetic variation. This study aimed to assess the genetic variation and phylogenetic relationship of cogongrass in Java Island using an intergenic spacer (IGS) sequence in the cpDNA genome, i.e. trnT(UGU)-trnL(UAA), as the molecular marker of high mutation rate. Plant samples were collected randomly from five different sites on the island. These were subjected to total genomic DNA extraction. The DNAs obtained were then used as PCR templates to amplify trnT(UGU)-trnL(UAA) IGS using a pair of universal primers. The PCR products were sequenced for genetic analysis. It was shown that an extremely high genetic variation with respect to the haplotype diversity of cogongrass in Java Island was observed. Nevertheless, a very low nucleotide diversity was obtained revealing a considerably close genetic relationship among the samples. Anatomical data regarding stomata number and length were found to correspond to the high level of genetic variation, but it was not the case with the stomata index.

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“…Also, the significance and usefulness of SEM in solving taxonomic problems and in describing taxa have been emphasized by many researchers (Eroğlu et al, 2022; Heywood, 1971; Karaismailoğlu & Erol, 2018). However, there are few studies on the importance of achene micromorphology in the genus Artemisia (Abdel‐Hamid, 2020; Al‐Ajmi et al, 2021; Boyko, 2013; Vakulenko et al, 2020). In this study, Turkish Artemisia taxa have been examined for the first time.…”

Section: Discussionmentioning

confidence: 99%

“…Some morphological, anatomical, cytological, and palynological studies on some taxa of the genus Artemisia have been made, so far ( Kursat et al, 2014; Kursat et al, 2015; Kursat et al, 2018; Kursat, Civelek, et al, 2011; Kursat, Turkoglu, et al, 2011; Nourbakhsh et al, 2008; Pınar & Adıgüzel, 1998; Sancar et al, 2021; Tabur et al, 2012; Tabur et al, 2014). Also, morphological characters of the achenes have been taken into account for the diagnosis of a small number of Artemisia taxa in different countries (Abdel‐Hamid, 2020; Al‐Ajmi et al, 2021; Boyko, 2013; Vakulenko et al, 2020). However, the significance of the achene in the genus has often been ignored in Turkey, where is one of the centers of diversity for the genus.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

Karaismailoğlu,

Polat Alkan,

Kürşat

et al. 2024

Microscopy Res & Technique

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In the study, the achene macromorphological and micromorphological characters of the genus Artemisia distributed in Turkey have been researched with the target of knowing systematically important carpological structures for the examined species. Macro‐morphological structures of the achenes including color, shape, dimension, and carpopodium diameter were studied with 100 achenes of 10 specimens per taxa with a Light Microscope. Micro‐morphological features of the achenes containing surface ornamentation, anticlinal and periclinal cell walls, epidermal cells, and the presence of secondary structures were examined with a Scanning Electron Microscope. EDS analyses were performed with a SEM. EDS analyses were carried out by selecting the same spot on the sample surface at 80 sec under 30 μm aperture size, with 20 kV acceleration voltage, 8 mm operating distance, high current, and processing time conditions. The color, shape, and dimension of achene have macro‐morphologically shown variations. The examined achenes are separated into four shapes; fusiform‐oblong, oblong, oblong‐ovate, and ovate. Oblong‐ovate is the most common type. Achene dimensions range from 0.62 to 2.48 mm in length, and from 0.30 to 1.21 mm in width. Also, carpopodium diameter varies between 0.10 and 0.19 mm. Achene surfaces of the examined taxa are micro‐morphologically assessed, and substantial differences are noticeably detected on behalf of the surface structures for instance, surface ornamentation, anticlinal and periclinal cell walls, epidermal cells, and the presence of secondary structures of the achenes. Surface ornamentation is separated into 10 types: irregularly sulcate, regularly sulcate, ruminate, sulcate‐scalariform, rugose, favulariate, slightly sulcate, alveolate, tuberculate, and reticulate. A percentage comparison of the elements in the achene pericarp of the studied taxa has been performed with SEM‐EDS. Accordingly, pericarps in taxa include C, Ca, K, Mg, Cl, Si, Na, and S elements. In the taxonomy of the genus Artemisia, the achene morphological characters are very significant characteristics that disclose inter‐specific relations among the examined taxa. Moreover, a dichotomous key is offered for the identification of the studied taxa based on achene characters.Research Highlights The achenes of Turkish Artemisia taxa have been examined in depth. The morphological characteristics of achenes of Turkish Artemisia taxa have been studied using SEM and LM for the first time and debated the systematic practice of these characters. The elemental content of the achene pericarp has been systematically evaluated for the first time.

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Micromorphological and genetic molecular variations in some taxa of Asteraceae and its importance as grazing plants

Cited by 4 publications

References 25 publications

Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

Molecular Profile of Cogongrass [Imperata cylindrica (L.) Raeusch] in Java Island Based on trnT(UGU)-trnL(UAA) IGS Sequences

Taxonomic significance of morphological and elemental characteristics of achenes of Artemisia genus from Turkey

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