Study of intraspecific diversity of Artemisia incana (L.) Druce in East Azerbaijan (original) (raw)
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Poljakov Artemisia leucodes Schrenk: Artemisia leucodes (Schrenk) Poljakov Artemisia scoparia Waldst. & Kit.: Artemisia capillaris fo. angustisecta Pamp.; Artemisia capillaris fo. elegans (Roxb.) Pamp.; Artemisia capillaris fo. kohatica (Klatt) Pamp.; Artemisia capillaris fo. myriocephala Pamp.; Artemisia capillaris fo. tenuifolia Pamp.; Artemisia capillaris fo. villosa (Korsh.) Pamp.; Artemisia capillaris fo. williamsonii Pamp.; Artemisia capillaris fo. scoparia (Waldst. & Kit.) Pamp.; Artemisia elegans Roxb.; Artemisia kohatica Klatt; Artemisia scoparia fo. sericea Kom.; Artemisia scoparia var. heteromorpha Kitag.; Artemisia scopariiformis Popov; Oligosporus scoparius (Waldst. & Kit.) Less.; Oligosporus scoparius (Waldst. & Kit.) Poljakov Artemisia vulgaris L.: Artemisia opulenta Pamp.; Artemisia vulgaris var. glabra Ledeb.; Artemisia vulgaris var. kamtschatica Besser Eclipta prostrata (L.
ISSN 1684–5315 © 2009 Academic Journals Review Phylogeny of Artemisia L.: Recent developments
2009
In this review, classification and phylogeny of genus Artemisia L. is discussed. Its centers of diversity lie in the temperate and cold temperate regions of the Eurasia, North America and Asia. Artemisia has two basic chromosome numbers, with ploidy levels x=9 and x=8. Chromosome number in diploid is most often 2n=18 or 16. The genus is divided into five large groups Absinthium DC., Artemisia L., Dracunculus Besser, Seriphidium Besser and Tridantatae (Rydb.) McArthur. Its phylogeny was based on the two hypothesized evolutionary trends, loss of fertility in the disc florets and loss of ray florets. Recently its molecular phylogeny based on internally transcribed spacer (ITS), externally transcribed spacer (ETS) regions of the DNA and chloroplast DNA suggested that the genus Artemisia is a monophyletic but it could not resolve the problem of infra-generic classification. This study revealed that there is need to search new genome regions to establish a natural classification based on ...
Review Phylogeny of Artemisia L.: Recent developments
2009
In this review, classification and phylogeny of genus Artemisia L. is discussed. Its centers of diversity lie in the temperate and cold temperate regions of the Eurasia, North America and Asia. Artemisia has two basic chromosome numbers, with ploidy levels x=9 and x=8. Chromosome number in diploid is most often 2n=18 or 16. The genus is divided into five large groups Absinthium DC., Artemisia L., Dracunculus Besser, Seriphidium Besser and Tridantatae (Rydb.) McArthur. Its phylogeny was based on the two hypothesized evolutionary trends, loss of fertility in the disc florets and loss of ray florets. Recently its molecular phylogeny based on internally transcribed spacer (ITS), externally transcribed spacer (ETS) regions of the DNA and chloroplast DNA suggested that the genus Artemisia is a monophyletic but it could not resolve the problem of infra-generic classification. This study revealed that there is need to search new genome regions to establish a natural classification based on ...
Phylogeny of Artemisia L.: Recent developments
2009
In this review, classification and phylogeny of genus Artemisia L. is discussed. Its centers of diversity lie in the temperate and cold temperate regions of the Eurasia, North America and Asia. Artemisia has two basic chromosome numbers, with ploidy levels x=9 and x=8. Chromosome number in diploid is most often 2n=18 or 16. The genus is divided into five large groups Absinthium DC., Artemisia L., Dracunculus Besser, Seriphidium Besser and Tridantatae (Rydb.) McArthur. Its phylogeny was based on the two hypothesized evolutionary trends, loss of fertility in the disc florets and loss of ray florets. Recently its molecular phylogeny based on internally transcribed spacer (ITS), externally transcribed spacer (ETS) regions of the DNA and chloroplast DNA suggested that the genus Artemisia is a monophyletic but it could not resolve the problem of infra-generic classification. This study revealed that there is need to search new genome regions to establish a natural classification based on modern molecular techniques.
A new combination and a new variety in Artemisia tridentata
The Great Basin naturalist, 1985
The combination Artemisia tridcntata Nutt. ssp. spicifonui.s (Osteihout) Goodrich & McArriiur comb, nov. is made. This high elevation taxon was originally described at the species level and more recently has generally been treated as a form of A. tridentata ssp. vaseijana. The subspecies designation is supported by its parallel nature to the other A. tridentata subspecies and by its relatively widespread and locally abundant populations. Also, a new variety of A. tridentata ssp. laseijana is proposed. Artemisia spicifonnis Osterhout was described (Osterhout 1900) from specimens collected at North Park, Jackson County (Larimer County on the label of Osterhout's type specimen, 2011), Colorado. Artemisia rothrockii Gray was described (Brewer et al. 1876) from specimens collected at Monache Meadows, Tulare County, California. Plants of these taxa are marked by large heads with about 10-18 flowers, by narrow spicate panicles, and by apically dentate or lobate leaves and often with some entire leaves, especially on the flowering stalks. They are mostly found at subalpine and alpine elevations. Both are members of the endemic North American subgenus Tridentatae (McArthur et al. 1981). Hall and Clements (1923) reduced A. rothrockii to a subspecies of A. tridentata Nutt., and they reduced A. spicifonnis to a synonym or a minor variation of A. tridentata ssp. rothrockii. They listed a distribution for this complex that included Washington to California and east to Wyoming and Colorado. However, they mentioned that the specimens from Colorado including the type specimen of A. spiciformis are more gray or white and
Systematic studies on some species of the genus Artemisia: biomolecular analysis
Plant Biosyst, 2003
The internal transcribed spacers (ITS) of the ribosomal DNA gene of 11 taxa of the genus Artermsia were sequenced and compared with other 14 species taken from GenBank. The aims of this study are to clarify phylogenetic relationships for 25 taxa within the genus Artemisia, and to highlight the phylogenetic position of some species of geobotanical interest from the Alps or from other European areas. The results support the monophyly of the genus Artemisia, and the presence of the five main clades, corresponding to the morphologically based sections, Absinthium, Artemisia, Seriphidium, Dracunculus and Tridentatae. Only A. annua and A. genfpi are not classified in the section in which they were traditionally included: A. annua is assigned to Seriphidium and not Artemisia, and A.genipi to Absinthium and not Artemisia. The basal structure of the tree differed in the 45 equally parsimonious MP trees, and thus appeared as a polytomy in the consensus tree. This does not allow us to completely solve the relationships among the clades. The molecular data are complementary with the morphological and biogeographical information and all are essential to draw validconclusions on the relative closeness of the various taxa.
American Journal of Botany, 2011
The genus Artemisia L. is the largest of tribe Anthemideae Cass. (Asteraceae Martinov), comprising around 500 species (Vall è s and McArthur, 2001 ; Vall è s and Garnatje, 2005), many of them ecologically and economically relevant. Some of them are important medicinal plants such as Artemisia annua L., whose component artemisinin is successfully used against malaria (Van der Meersch, 2005); others are used as condiments, as tarragon (A. dracunculus L.) or to make alcoholic beverages such as absinth (A. absinthium L.). Artemisia species are widely distributed in temperate areas in the northern Hemisphere (Bremer, 1994) but very sparsely in the southern Hemisphere, with fewer than 10 species there. Four or fi ve subgenera are generally accepted: Artemisia , Absinthium (Mill.) Less., Dracunculus Besser, Seriphidium (Besser) Poljakov, and Tridentatae (Rydberg) McArthur; some treatments combine subgenera Artemisia and Absinthium in a single subgenus, Artemisia (Shultz, 2009). The classic subgeneric delimitations have been subject to rearrangement in the light of recent molecular studies, which in some cases do not support the traditional classifications and portray some of the classical subgenera as polyphyletic or paraphyletic (
The Species of the Genus Artemisia L. in Ustyurt and Its Chemical Elements
Journal of Arid Land , 2015
During floristic study and study of the collection on plant specimens (LE, TASH, AA) 2 new records were found (Artemisia campestris L. and Artemisia dracunculus L.) for the first time for the flora of Ustyurt. The revision presents chemical elements of the genus Artemisia L. in the flora of Ustyurt. The study of chemical composition of some dominant species of the genus Artemisia L. (A. terrae-albae Krasch., A. turanica Krasch.) revealed that observed species contains 38 chemical elements. Of these, the element Re defined for the first time in the composition of the plant.
Botanica Pacifica, 2018
Chromosome numbers (CN) for 12 species of Artemisia L. (Asteraceae) from the Altai region of the West Siberia (Republic of Altai and Altaiskii Krai) are repor ted. New CNs, previously unknown for the species, were revealed in A. latifolia Ledeb. (2n = 108) and A. macrantha Ledeb. (2n = 54, 98). For 8 species there are first CN counts from Altai region. Brief comments on CNs and information on ecology and distribution of the species studied are given. K e y w o r d s : chromosome numbers, Artemisia, Asteraceae, vascular plants, Altai region, West Siberia, Russia Р Е З Ю М Е Коробков А.А., Коцеруба В.В., Пробатова Н.С. Числа хромосом 12 видов рода Artemisia (Asteraceae) c Алтая, Западная Сибирь, Россия. Сообщаются числа хромосом для 12 видов сосудистых растений из Ал тайского региона Западной Сибири (Республика Алтай и Алтайский край). Новые, не известные ранее числа хромосом установлены у A. latifolia Ledeb. (2n = 108) и A. macrantha Ledeb. (2n = 54, 98). В Алтайском регионе впервые исследованы 8 видов. Для рассматриваемых видов даны комментарии по числам хромосом, и краткая информация по экологии и распространению. К л ю ч е в ы е с л о в а : числа хромосом, Artemisia, Asteraceae, сосудистые рас тения, Алтайский регион, Западная Сибирь, Россия
Temporal origins and diversification of Artemisia and allies (Anthemideae, Asteraceae)
Collectanea Botanica (Barcelona), 2011
Temporal origins and diversification of Artemisia and allies (Anthemideae, Asteraceae).-To assess temporal origins and diversification of lineages within subtribe Artemisiinae and Artemisia group a penalized likelihood analysis was applied on nrDNA ITS and eTS of 63 representatives. The tree was calibrated at the stem node of the Kaschgaria/ Artemisia lineage with the most reliable early Artemisia fossil pollen record from late Oligocene (23 Ma). The results from this study suggest that the origin of the subtribe goes back to the late Oligocene (24.6 ± 2.6 Ma) whilst the onset of differentiation of the genus Artemisia and most closely related genera is dated to the early Miocene (19.8 ± 2.3 Ma). Divergence ages for lineages within the Artemisia group are often between the early and Middle Miocene, whereas their radiations mostly occurred in the late Miocene and Pliocene. The temporal context was also used to examine biogeographic and morphological (capitula and pollen type) evolution. within the Artemisia group all lineages except the North American endemic have colonized the Mediterranean Basin at different epochs from Asian ancestors. Our analyses suggest the divergence of the North American endemic group from Asian ancestors (10.8 ± 1.5 Ma) in the late Miocene. homogamous-discoid capitula, characteristic of subgenera Seriphidium and Tridentatae, evolved not only in different geographic regions, but also at different times (2.0 ± 0.8 Ma and 7.9 ± 0.9 Ma respectively) within the Artemisia group. The loss of fertility of central flowers of disciform capitula should be considered as an ancient event in the genus since subgenus Dracunculus is one of the first groups that diverged (17.6 ± 2.1 Ma).