Chromosomes and Phylogeny in Crepis
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
05 in the Front Line 21-09-2010 11:36 Am Page 1
05 in the front line 21-09-2010 11:36 am Page 1 In the front line Judy Harry Plants that grow in the front line perform many functions. They have to provide the first line of defence against careless invasions by mowers, feet, even livestock (fig. 1) They form at one and the same time the start and the finish of the border, leading the eye to statuesque and imposing plants at the rear, or allowing the eye to come to a comfortable stop at the front. Which all sounds rather prosaic, not to say functional. One of the pleasures of last year’s gardening for me was being able to see some of my ‘front liners’ with fresh eyes, not just as the useful plants they undoubtedly are, but also as the star performers they can be in their own right. It all started with the flowering of Jovellana violacea (fig. 2). Having bought it as a very small plant on the 2002 Autumn Weekend, I planted it where I could keep an eye on it. Each spring, in my ignorance, I cut it back to tidy it up, assuming that it would produce flowers later in the summer: exactly the wrong thing to do. This interesting little shrublet flowers on the previous year’s wood in early summer, and Addison © Twink with time will form a thicket of upright stems, bearing pale, whitish-mauve pouched flowers with spotted throats. My poor plant, of course, never had mature enough stems to produce so much as a spot, let alone whole pouches. -
Garden Diary Number Seven Wildlife and Wildflowers Start Off This Garden Diary
Garden diary number seven Wildlife and wildflowers start off this garden diary. It shows a good balance between plantsmanship and the environment when nature comes in of its own accord. When walking on a nature reserve on a warm calm day the insect and bird activity add an extra dimension which a photograph simply cannot capture. The first photo is a small wildflower patch in my own garden which is only 3 feet square but has a number of native species that attract a lot of pollinators. Just digging out the topsoil and replacing with subsoil and grit provided an ideal planting medium. Second photo is Epipactis palustris the marsh helleborine which snakes its way around this bed in a delightful fashion. Next photos were sent in by Norma Pagdin and Joan Bradbury who live in County Durham. The first photo shows self-sown orchids growing on the lawn. The land is on a magnesian limestone belt which runs from Nottingham up to this area. It surfaces in different areas creating calcareous habitats. Brockadale, Burton Leonard kiln works and Townclose Hills are reserves on this belt. The second photo is Viola odorata the sweet white violet which grows under hedgerows preferring the shade. Next page was sent in by Georgina Instone and is a well written article about their encounter with a red-legged partridge in their own garden. Wildlife in our garden – Georgina Instone. We have had something very interesting in the garden but it didn't end well. At the beginning of April, we discovered a Red-legged Partridge had chosen our garden to have its nest. -
Estella Nazarova Chromosomal Polymorphism in Armenian
Estella Nazarova Chromosomal polymorphism in Armenian population of Crepis panno nica (Asteraceae) Abstract Nazarova, E.: Chromosomal polymorphism in Annenian population of Crepis pannonica (Asteraceae). - Bocconea 13: 377-382. 2001. - ISSN 1120-4060. A population of Crepis pannonica, growing in the Hosrov reserve in Armenia, at the southem limit ofthe species' area, has been investigated over a period ofmore than 20 years. An extraor dinary chromosomal polymorphism has been detected by the study ofroot tip mitoses ofseed lings. 40 different chromosome complement variants were found, including a full range of aneuploids, B-chromosomes, structural hetero- and homozygotes, witnessing active chromoso mal restructuring and karyotype evolution. Introduction Crepis pannonica (Jacq.) K. Koch is a perenni al cross-pollinating species ranging from CentraI Europe to West Siberia. Its karyotype formula is 2n = 8 = AA (SM) + BB (SA) + CC (SM) + DD (N) (Nazarova 1976, see also Babcock 1947). We have been investigating the Hosrov reserve population of Crepis pannonica, in CentraI Armenia, for over 20 years. Being situated at the southemmast edge of the vast area of the species, this population attracted our attention because of its unusual karyo logical polymorphism. Throughaut our investigatians we did not find a single plant whose seed progeny was completely exempt of deviations in karyological features. In some years (1973, 1978, and 1984) the population was totally seed-sterile in spite of abundant flow ering. In the other years, both sterile plants and plants with reduced fertility (from 1.8 % to 78.3 % of germinating seeds) were faund. Obviously, the generative reproduction of C. pannonica in this population is very depressed. -
The Rock Garden 136 the Ro
January 2016 January 2016 THE ROCK GARDEN 136 THE ROCK GARDEN 136 January 2016 THE ROCK GARDEN Volume XXXIV Part 3 - 136 January 2016 THE ROCK GARDEN Volume XXXIV Part 3 - 136 PostalPostal Subscriptions Subscriptions from from 1st October, 1st October, 2015 2015 Postal subscriptionsPostal subscriptions are payable are payable annually annually by October by October and provide and provide membership membership of the of the SRGC untilSRGC 30 thuntil September 30th September of the following of the following year. year. SubscriptionSubscription Rates Rates UK UK OverseasOverseas Single annualSingle annual £18 £18 £23 £23 Junior Junior £3 £3 £7 £7 (under 18(under on 1 18st Oct) on 1st Oct) Family Family £21 £21 £25 £25 (Two adults(Two andadults up and to two up childrento two children under 18 under on 1 18st Oct) on 1st Oct) Three yearThree subscriptions year subscriptions are available are available at three at times three the times above the aboveannual annualrates. Renewals rates. Renewals for threefor year three subscriptions year subscriptions may only may be only made be atmade the end at the of endthe three of the year three period. year period. All subscriptionAll subscription payments payments to the club to the must club be must made be inmade GB Pounds in GB Pounds Sterling. Sterling. ChequesCheques should shouldbe made be payablemade payable to ‘The Scottishto ‘The Scottish Rock Garden Rock Garden Club’ and Club’ must and be must be drawn ondrawn a UK on bank. a UK bank. SubscriptionSubscription payments payments may be may made be throughmade through the post the by post Visa byor MastercardVisa or Mastercard providingproviding the following the following information information is sent: is sent: The longThe number long number on the cardon the card The nameThe ofname the cardholder of the cardholder as shown as onshown the cardon the card The cardThe expiry card date expiry date The cv2The 3 digit cv2 number3 digit number (from back (from of back the card) of the card) The cardholder’sThe cardholder’s signature. -
Vegetation at the Taiga Forest–Steppe Borderline in the Western Khentey Mountains, Northern Mongolia
Ann. Bot. Fennici 42: 411–426 ISSN 0003-3847 Helsinki 19 December 2005 © Finnish Zoological and Botanical Publishing Board 2005 Vegetation at the taiga forest–steppe borderline in the western Khentey Mountains, northern Mongolia Choimaa Dulamsuren1, Markus Hauck2 & Michael Mühlenberg1 1) Center of Nature Conservation, University of Göttingen, Von-Siebold-Straße 2, D-37075 Göttingen, Germany (e-mail: [email protected]) 2) Albrecht von Haller Institute of Plant Sciences, University of Göttingen, Untere Karspüle 2, D-37073 Göttingen, Germany (e-mail: [email protected]) Received 31 Aug. 2004, revised version received 11 Nov. 2004, accepted 7 Jan. 2005 Dulamsuren, C., Hauck, M. & Mühlenberg, M. 2005: Vegetation at the taiga forest–steppe border- line in the western Khentey Mountains, northern Mongolia. — Ann. Bot. Fennici 42: 411–426. Vegetation of an area of 500 km2 in the western Khentey Mountains, northern Mon- golia is phytosociologically classified with the help of 254 relevés. Twenty-one main vegetation units are described. The study area is situated at the interface between the western Siberian dark taiga, the eastern Siberian light taiga and the Mongolian-Daurian forest steppe. A small-scale pattern of these three major vegetation types was found depending on site characteristics. Dark taiga forests of Pinus sibirica, Abies sibirica, Picea obovata, and Larix sibirica grow at the most humid sites. Light taiga forests dominated by Larix sibirica and Betula platyphylla occur on relatively dry northern slopes of the lower montane belt. Sun-exposed, southern slopes of the lower montane belt are covered by montane meadow and mountain steppe. DCA ordination suggests that the distribution of vegetation types depends on water supply and altitude. -
European Glacial Relict Snails and Plants: Environmental Context of Their Modern Refugial Occurrence in Southern Siberia
bs_bs_banner European glacial relict snails and plants: environmental context of their modern refugial occurrence in southern Siberia MICHAL HORSAK, MILAN CHYTRY, PETRA HAJKOV A, MICHAL HAJEK, JIRI DANIHELKA, VERONIKA HORSAKOV A, NIKOLAI ERMAKOV, DMITRY A. GERMAN, MARTIN KOCI, PAVEL LUSTYK, JEFFREY C. NEKOLA, ZDENKA PREISLEROVA AND MILAN VALACHOVIC Horsak, M., Chytry, M., Hajkov a, P., Hajek, M., Danihelka, J., Horsakov a,V.,Ermakov,N.,German,D.A.,Ko cı, M., Lustyk, P., Nekola, J. C., Preislerova, Z. & Valachovic, M. 2015 (October): European glacial relict snails and plants: environmental context of their modern refugial occurrence in southern Siberia. Boreas, Vol. 44, pp. 638–657. 10.1111/bor.12133. ISSN 0300-9483. Knowledge of present-day communities and ecosystems resembling those reconstructed from the fossil record can help improve our understanding of historical distribution patterns and species composition of past communities. Here, we use a unique data set of 570 plots explored for vascular plant and 315 for land-snail assemblages located along a 650-km-long transect running across a steep climatic gradient in the Russian Altai Mountains and their foothills in southern Siberia. We analysed climatic and habitat requirements of modern populations for eight land-snail and 16 vascular plant species that are considered characteristic of the full-glacial environment of central Europe based on (i) fossil evidence from loess deposits (snails) or (ii) refugial patterns of their modern distribu- tions (plants). The analysis yielded consistent predictions of the full-glacial central European climate derived from both snail and plant populations. We found that the distribution of these 24 species was limited to the areas with mean annual temperature varying from À6.7 to 3.4 °C (median À2.5 °C) and with total annual precipitation vary- ing from 137 to 593 mm (median 283 mm). -
5. Tribe CICHORIEAE 菊苣族 Ju Ju Zu Shi Zhu (石铸 Shih Chu), Ge Xuejun (葛学军); Norbert Kilian, Jan Kirschner, Jan Štěpánek, Alexander P
Published online on 25 October 2011. Shi, Z., Ge, X. J., Kilian, N., Kirschner, J., Štěpánek, J., Sukhorukov, A. P., Mavrodiev, E. V. & Gottschlich, G. 2011. Cichorieae. Pp. 195–353 in: Wu, Z. Y., Raven, P. H. & Hong, D. Y., eds., Flora of China Volume 20–21 (Asteraceae). Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis). 5. Tribe CICHORIEAE 菊苣族 ju ju zu Shi Zhu (石铸 Shih Chu), Ge Xuejun (葛学军); Norbert Kilian, Jan Kirschner, Jan Štěpánek, Alexander P. Sukhorukov, Evgeny V. Mavrodiev, Günter Gottschlich Annual to perennial, acaulescent, scapose, or caulescent herbs, more rarely subshrubs, exceptionally scandent vines, latex present. Leaves alternate, frequently rosulate. Capitulum solitary or capitula loosely to more densely aggregated, sometimes forming a secondary capitulum, ligulate, homogamous, with 3–5 to ca. 300 but mostly with a few dozen bisexual florets. Receptacle naked, or more rarely with scales or bristles. Involucre cylindric to campanulate, ± differentiated into a few imbricate outer series of phyllaries and a longer inner series, rarely uniseriate. Florets with 5-toothed ligule, pale yellow to deep orange-yellow, or of some shade of blue, including whitish or purple, rarely white; anthers basally calcarate and caudate, apical appendage elongate, smooth, filaments smooth; style slender, with long, slender branches, sweeping hairs on shaft and branches; pollen echinolophate or echinate. Achene cylindric, or fusiform to slenderly obconoidal, usually ribbed, sometimes compressed or flattened, apically truncate, attenuate, cuspi- date, or beaked, often sculptured, mostly glabrous, sometimes papillose or hairy, rarely villous, sometimes heteromorphic; pappus of scabrid [to barbellate] or plumose bristles, rarely of scales or absent. -
Literaturverzeichnis
Literaturverzeichnis Abaimov, A.P., 2010: Geographical Distribution and Ackerly, D.D., 2009: Evolution, origin and age of Genetics of Siberian Larch Species. In Osawa, A., line ages in the Californian and Mediterranean flo- Zyryanova, O.A., Matsuura, Y., Kajimoto, T. & ras. Journal of Biogeography 36, 1221–1233. Wein, R.W. (eds.), Permafrost Ecosystems. Sibe- Acocks, J.P.H., 1988: Veld Types of South Africa. 3rd rian Larch Forests. Ecological Studies 209, 41–58. Edition. Botanical Research Institute, Pretoria, Abbadie, L., Gignoux, J., Le Roux, X. & Lepage, M. 146 pp. (eds.), 2006: Lamto. Structure, Functioning, and Adam, P., 1990: Saltmarsh Ecology. Cambridge Uni- Dynamics of a Savanna Ecosystem. Ecological Stu- versity Press. Cambridge, 461 pp. dies 179, 415 pp. Adam, P., 1994: Australian Rainforests. Oxford Bio- Abbott, R.J. & Brochmann, C., 2003: History and geography Series No. 6 (Oxford University Press), evolution of the arctic flora: in the footsteps of Eric 308 pp. Hultén. Molecular Ecology 12, 299–313. Adam, P., 1994: Saltmarsh and mangrove. In Groves, Abbott, R.J. & Comes, H.P., 2004: Evolution in the R.H. (ed.), Australian Vegetation. 2nd Edition. Arctic: a phylogeographic analysis of the circu- Cambridge University Press, Melbourne, pp. marctic plant Saxifraga oppositifolia (Purple Saxi- 395–435. frage). New Phytologist 161, 211–224. Adame, M.F., Neil, D., Wright, S.F. & Lovelock, C.E., Abbott, R.J., Chapman, H.M., Crawford, R.M.M. & 2010: Sedimentation within and among mangrove Forbes, D.G., 1995: Molecular diversity and deri- forests along a gradient of geomorphological set- vations of populations of Silene acaulis and Saxi- tings. -
Titica Ghenadie
ACADEMIA DE ŞTIINŢE A MOLDOVEI GRĂDINA BOTANICĂ (INSTITUT) Cu titlu de manuscris C.Z.U: 581.9(478:252.5)(043.2) TITICA GHENADIE FLORA ȘI VEGETAȚIA STEPELOR SUBDEȘERTICE DIN REPUBLICA MOLDOVA 164.01 – Botanica Teză de doctor în ştiinţe biologice Conducător ştiinţific: Postolache Gheorghe, doctor habilitat în biologie, profesor universitar Autorul: CHIŞINĂU, 2015 © Titica Ghenadie, 2015 2 CUPRINS АDNOTARE (română, rusă, engleză) ......................................................................................... 4 LISTA ABREVIERILOR UTILIZATE ÎN TEZĂ .................................................................... 7 INTRODUCERE ........................................................................................................................... 8 1. ISTORICUL CERCETĂRII STEPELOR SUBDEŞERTICE DIN REPUBLICA MOLDOVA .................................................................................................................................. 13 1.1. Istoricul cercetării stepelor subdeșertice din Republica Moldova ...................................... 13 1.2. Aşezarea geografică ............................................................................................................ 16 1.3. Condiţiile naturale .............................................................................................................. 19 1.4. Concluzii la capitolul 1 ....................................................................................................... 28 2. FLORA STEPELOR SUBDEŞERTICE DIN R. MOLDOVA .......................................... -
The “Plant Drosophila”: E. B. Babcock, the Genus Crepis, and the Evolution of a Genetics Research Program at Berkeley, 1915–1947
HSNS3903_02 6/26/09 11:04 AM Page 300 ∗ VASSILIKI BETTY SMOCOVITIS The “Plant Drosophila”: E. B. Babcock, the Genus Crepis, and the Evolution of a Genetics Research Program at Berkeley, 1915–1947 The student of genetics must be ready to resort to the use of any living organism that gives promise of revealing the natural laws upon which the future science of breeding will be grounded. E. B. Babcock, 19131 The Crepis investigations carried on by the Babcock group are the American evolutionary investigations that seem to have attracted the largest attention outside of America next to the Drosophila investigations. One reason for this is their wider systematical aspect. Jens Clausen, 19342 *Departments of Zoology and History, Affiliate in Botany, University of Florida, Bartram Hall, Gainesville, FL 32611; [email protected]fl.edu, [email protected]fl.edu. The following abbreviations are used: APS, American Philosophical Society Library, Philadel- phia, PA; CAS, California Academy of Sciences, San Francisco, CA; CIW, Carnegie Institution of Washington; CP, Carnegie Papers, Missouri Botanical Garden Archives, St. Louis, MO; EBB, Ernest Brown Babcock Papers, TBL; JHB, Journal of the History of Biology; JAJ, James Angus Jenkins Papers, TBL; RG, Rockefeller Foundation Archives, Sleepy Hollow, NY, http://www.rockarch.org/collections/rf/; TBL, The Bancroft Library, University of California, Berkeley; UC, University of California; UCGD, University of California, Berkeley, Genetics Department, APS. Interviews with G. Ledyard Stebbins are transcribed and in the author’s possession. 1. “Division of Genetics: Report to the Director of the Experiment Station, 11 June 1913,” EBB, Folder The Division of Genetics of the Department of Agriculture. -
Diptera) from Transcaucasia Первые Находки Двух Видов Из Семейства Tephritidae И Одного Вида Из Семейства Platystomatidae (Diptera) Для Закавказья
ZOOSYSTEMATICA ROSSICA ISSN 2410-0226 Zoological Institute, Russian Academy of Sciences, St Petersburg ▪ https://www.zin.ru/journals/zsr/ [ onl ine] 0320-9180 Vol. 29(1): 155–161 ▪ Published online 30 June 2020 ▪ DOI 10.31610/zsr/2020.29.1.155 [ print] RESEARCH ARTICLE First records of two species of Tephritidae and one species of Platystomatidae (Diptera) from Transcaucasia Первые находки двух видов из семейства Tephritidae и одного вида из семейства Platystomatidae (Diptera) для Закавказья D.A. Evstigneev & N.V. Glukhova Д.А. Евстигнеев, Н.В. Глухова Dmitry A. Evstigneev, Ulyanovsk Institute of Civil Aviation, 8/8 Mozhaysky Str., Ulyanovsk 432071, Russia. E-mail: [email protected] Natalia V. Glukhova, I.N. Ulyanov State Pedagogical University of Ulyanovsk, 4 Lenin Sq., Ulyanovsk 432700, Russia. E-mail: [email protected] Abstract. Two species of Tephritidae, Tephritis conyzifoliae Merz, 1992 and Tephritomyia lauta (Loew, 1869), and one species of Platystomatidae, Platystoma dimidiatum Hendel, 1913, are recorded for the first time from Armenia and Transcaucasia at large. The larvae of T. conyzifoliae develop in two species of Crepis, C. pannonica (Jacq.) K. Koch and C. ciliata C. Koch. The latter species is recorded for the first time as a host plant of T. conyzifoliae. Tephritomyia lauta were reared from Echinops sp. The morphologi cal details of all three species of flies are illustrated in colour photos, as well as the host plants of the two species of tephritids. Резюме. Два вида мух из семейства Tephritidae (Tephritis conyzifoliae Merz, 1992 и Tephritomyia lauta (Loew, 1869)) и один вид из семейства Platystomatidae (Platystoma dimidiatum Hendel, 1913) впервые приводятся для Армении и Закавказья в целом. -
Dandelions & Friends
The Amazing Dandelion (And Friends) By Lyndon Penner The common dandelion (Taraxacum officinale) is one of the most easily recognized and most hated plants in the world. Originally native to cold parts of Europe and Asia, it has now made its way around the globe and while it does not generally fare well in the tropics, it has made itself quite at home in nearly every place that it has arrived. The common name is a corruption of the French dente de lion, meaning “the teeth of the lion”. It is a reference to the large, tooth-like serrations in the plant’s leaves. (The French also called it pis en lit, literally “wet the bed”, a reference to its diuretic abilities.) The first part of the scientific name for this plant comes from the Latin word taraxis, meaning to move or disturb. It is a reference to the dandelion’s ability to rapidly colonize and inhabit disturbed ground. The second part, officinale, means official and refers to medicinal use. All down through the ages, dandelions have been prized medicinally and have also been valued as food. It is believed that dandelions were deliberately introduced to North America for this reason. Extremely nutritious, the dandelion is high in iron, potassium, and vitamins A, B, and C. Their flavour is generally bitter, and they are usually blanched (deprived of sunlight for a couple of weeks) in order to make them tastier and more tender. The buds can be fried in butter and eaten like mushrooms. The flowers have been used to make beautiful golden jellies as well as wine.