Genome Symbols in the Triticeae (Poaceae)
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Identification of Cereal Remains from Archaeological Sites 2Nd Edition 2006
Identification of cereal remains from archaeological sites 2nd edition 2006 Spikelet fork of the “new glume wheat” (Jones et al. 2000) Stefanie JACOMET and collaborators Archaeobotany Lab IPAS, Basel University English translation partly by James Greig CEREALS: CEREALIA Fam. Poaceae /Gramineae (Grasses) Systematics and Taxonomy All cereal species belong botanically (taxonomically) to the large family of the Gramineae (Poaceae). This is one of the largest Angiosperm families with >10 000 different species. In the following the systematics for some of the most imporant taxa is shown: class: Monocotyledoneae order: Poales familiy: Poaceae (= Gramineae) (Süssgräser) subfamily: Pooideae Tribus: Triticeae Subtribus: Triticinae genera: Triticum (Weizen, wheat); Aegilops ; Hordeum (Gerste; barley); Elymus; Hordelymus; Agropyron; Secale (Roggen, rye) Note : Avena and the millets belong to other Tribus. The identification of prehistoric cereal remains assumes understanding of different subject areas in botany. These are mainly morphology and anatomy, but also phylogeny and evolution (and today, also genetics). Since most of the cereal species are treated as domesticated plants, many different forms such as subspecies, varieties, and forms appear inside the genus and species (see table below). In domesticates the taxonomical category of variety is also called “sort” (lat. cultivar, abbreviated: cv.). This refers to a variety which evolved through breeding. Cultivar is the lowest taxonomic rank in the domesticated plants. Occasionally, cultivars are also called races: e.g. landraces evolved through genetic isolation, under local environmental conditions whereas „high-breed-races“ were breed by strong selection of humans. Anyhow: The morphological delimitation of cultivars is difficult, sometimes even impossible. It needs great experience and very detailed morphological knowledge. -
Triticeae Biodiversity and Conservation, a “Genebanker” View
Czech J. Genet. Plant Breed., 41, 2005 (Special Issue) Triticeae Biodiversity and Conservation, a “Genebanker” View V. H������ Department of Gene Bank, Research Institute of Crop Production, 161 06 Prague-Ruzyně, Czech Republic, e-mail: [email protected] Abstract: Wild Triticeae are important genetic resources for cultivated cereals. While wild and primitive wheats are well preserved, other genera are rather neglected. Most of Triticeae have a large area of distribution, many occupy secondary habitats, or are weedy. However, there are also species with a limited distribution and those need primary attention in conservation. Annuals can be easily stored ex situ as easily as cultivated cereals; peren- nials have their longevity shortened. For successful conservation of genetic diversity one sample of a species is not enough. It is necessary to collect samples from the whole distribution area. Geographically distant popula- tions differ not only morphologically, but can have different spectra of genes. Even within a population there are large differences. For species scattered in distribution or restricted to a certain small area, it is reasonable to consider their in situ conservation. The basic requirement is to protect the locality/ies and to ensure that they are managed for sustainable reproduction of the Triticeae. Basically, this requires maintaining acceptable levels of use by man (grazing and disturbance), acceptable levels of plant competition from other species, and controlling allochtonous invasive species. Localities with in situ conservation require instant monitoring. A detailed docu- mentation (so called passport data) is prerequisite for both ex situ and in situ conservation. The taxonomic system must be conservative, without frequent nomenclatoral changes. -
Taxonomy, Morphology and Palynology of Aegilops Vavilovii (Zhuk.) Chennav
African Journal of Agricultural Research Vol. 5(20), pp. 2841-2849, 18 October, 2010 Available online at http://www.academicjournals.org/AJAR ISSN 1991-637X ©2010 Academic Journals Full Length Research Paper Taxonomy, morphology and palynology of Aegilops vavilovii (Zhuk.) Chennav. (Poaceae: Triticeae) Evren Cabi1* Musa Doan1 Hülya Özler2, Galip Akaydin3 and Alptekin Karagöz4 1Department of Biological Sciences, Faculty of Arts and Sciences, Middle East Technical University, Ankara, Turkey. 2Department of Biology, Faculty of Arts and Sciences, Sinop University, Sinop Turkey. 3Department of Biology Education, Hacettepe University, 06800 Ankara, Turkey. 4Department of Biology, Aksaray University, Aksaray, Turkey. Accepted 23 September, 2010 Aegilops vavilovii (Zhuk.) Chennav., a rare species, was collected from Southeast Anatolia, Turkey. During the field studies of the project “Taxonomic revision of Tribe Triticeae in Turkey”, Ae. vavilovii was accidentally recollected from three localities in anliurfa and Mardin provinces in 2007 and 2008, respectively. The main objective of this study is to shed light on the diagnostic characteristics of this rare species including its morphological, palynological and micro morphological features. Moreover, an emended and expanded description, distribution, phenology and ecology of this rare species are also provided. A. vavilovii and A. crassa are naturally found in the Southeastern part of Turkey and they share similar morphological features that caused a confused taxonomy. Pollen grains of A. vavilovii are heteropolar, monoporate and spheroidal (A/B: 1,13) typically as Poaceous. However, it generally, prefers clayish loam soils that are slightly alkaline (pH 7.7) with low organic content (1.54%). Although it is a rare species with very narrow area of distribution, very few samples have been represented in ex situ collections and the species has not been involved in any in situ conservation activities to save its genetic resources in Turkey. -
Conserving Europe's Threatened Plants
Conserving Europe’s threatened plants Progress towards Target 8 of the Global Strategy for Plant Conservation Conserving Europe’s threatened plants Progress towards Target 8 of the Global Strategy for Plant Conservation By Suzanne Sharrock and Meirion Jones May 2009 Recommended citation: Sharrock, S. and Jones, M., 2009. Conserving Europe’s threatened plants: Progress towards Target 8 of the Global Strategy for Plant Conservation Botanic Gardens Conservation International, Richmond, UK ISBN 978-1-905164-30-1 Published by Botanic Gardens Conservation International Descanso House, 199 Kew Road, Richmond, Surrey, TW9 3BW, UK Design: John Morgan, [email protected] Acknowledgements The work of establishing a consolidated list of threatened Photo credits European plants was first initiated by Hugh Synge who developed the original database on which this report is based. All images are credited to BGCI with the exceptions of: We are most grateful to Hugh for providing this database to page 5, Nikos Krigas; page 8. Christophe Libert; page 10, BGCI and advising on further development of the list. The Pawel Kos; page 12 (upper), Nikos Krigas; page 14: James exacting task of inputting data from national Red Lists was Hitchmough; page 16 (lower), Jože Bavcon; page 17 (upper), carried out by Chris Cockel and without his dedicated work, the Nkos Krigas; page 20 (upper), Anca Sarbu; page 21, Nikos list would not have been completed. Thank you for your efforts Krigas; page 22 (upper) Simon Williams; page 22 (lower), RBG Chris. We are grateful to all the members of the European Kew; page 23 (upper), Jo Packet; page 23 (lower), Sandrine Botanic Gardens Consortium and other colleagues from Europe Godefroid; page 24 (upper) Jože Bavcon; page 24 (lower), Frank who provided essential advice, guidance and supplementary Scumacher; page 25 (upper) Michael Burkart; page 25, (lower) information on the species included in the database. -
Registration of the Triticeae-CAP Spring Wheat Nested Association Mapping Population
Published February 28, 2019 JOURNAL OF PLANT REGISTRATIONS MAPPING POPULATION Registration of the Triticeae-CAP Spring Wheat Nested Association Mapping Population N. K. Blake, M. Pumphrey, K. Glover, S. Chao, K. Jordan, J.-L. Jannick, E. A. Akhunov, J. Dubcovsky, H. Bockelman, and L. E. Talbert* Abstract andrace accessions of wheat (Triticum aestivum The Triticeae-CAP spring wheat nested association mapping L.) are a potentially important resource for superior population (Reg. No. MP-10, NSL 527060 MAP) consisting of genes to improve modern wheat cultivars. The landrace recombinant inbred line (RIL) populations derived from 32 Laccessions themselves are typically inferior to modern cultivars spring wheat (Triticum aestivum L.) accessions each crossed to for both agronomic and quality characteristics. This is particu- a common spring wheat parent, ‘Berkut’, has been released. larly true when landraces from one region are grown in a differ- The spring wheat accessions consisted of 29 landraces and ent locale in that important alleles for adaptation to biotic and three cultivars. Each population consists of approximately 75 abiotic factors are lacking. A challenge for breeders is that supe- lines for a total of 2325 RILs (Reg. Nos. GSTR No. 14701–GSTR 17133). The RILs have all been genotyped with the Illumina rior alleles are difficult to detect in a background of undesir- wheat iSelect 90K single nucleotide polymorphism array able alleles that typify the landraces. The increased efficiency of using the Infinium assay method and through genotype-by- modern genotyping capabilities has provided an opportunity to sequencing. This nested association mapping population identify superior alleles from nonadapted germplasm for incor- provides a genotyped germplasm resource for the wheat poration into elite breeding material. -
Evaluation of Agro-Morphological Diversity in Wild Relatives of Wheat Collected in Iran
J. Agr. Sci. Tech. (2017) Vol. 19: 943-956 Evaluation of Agro-Morphological Diversity in Wild Relatives of Wheat Collected in Iran A. Pour-Aboughadareh1*, J. Ahmadi1, A. A. Mehrabi2, M. Moghaddam3, and A. Etminan4 ABSTRACT In this study, a core collection of 180 Aegilops and Triticum accessions belonging to six diploid (T. boeoticum Bioss., T. urartu Gandilyan., Ae. speltoides Tausch., Ae. tauschii Coss., Ae. caudata L. and Ae. umbellulata Zhuk.), five tetraploid (T. durum, Ae. neglecta Req. ex Bertol., Ae. cylindrica Host. and Ae. crassa Boiss) and one hexaploid (T. aestivum L.) species collected from different regions of Iran were evaluated using 20 agro- morphological characters. Statistical analysis showed significant differences among accessions. The Shannon-Weaver (HʹSW) and Nei’s (HʹN) genetic diversity indices disclosed intermediate to high diversity for most characters in both Aegilops and Triticum core sets. In factor analysis, the first five components justified 82.17% of the total of agro- morphological variation. Based on measured characters, the 180 accessions were separated into two major groups by cluster analysis. Furthermore, based on the 2D-plot generated using two discriminant functions, different species were separated into six groups, so that distribution of species accorded with their genome construction. Overall, our results revealed considerable levels of genetic diversity among studied Iranian Aegilops and Triticum accessions, which can open up new avenues for rethinking the connections between wild relatives to explore valuable agronomic traits for the improvement and adaptation of wheat. Keywords: Aegilops, Multivariate analysis, Phenotypic diversity, Triticum. INTRODUCTION traits, such as disease- or pest-resistance and even yield improvement. -
Report of a Working Group on Forages: Eighth Meeting
European Cooperative Programme for Crop Genetic 2525 Report of a Working Resources Networks ECP GR Group on Forages Eighth Meeting, 10 –12 April 2003, Linz, Austria B. Boller, E. Willner, L. Maggioni and E. Lipman, compilers <www.futureharvest.org> IPGRI is a Future Harvest Centre supported by the Consultative Group on International Agricultural Research (CGIAR) European Cooperative Programme for Crop Genetic 2525 Report of a Working Resources Networks ECP GR Group on Forages Eighth Meeting, 10 –12 April 2003, Linz, Austria B. Boller, E. Willner, L. Maggioni and E. Lipman, compilers ii REPORT OF A WORKING GROUP ON FORAGES: EIGHTH MEETING The International Plant Genetic Resources Institute (IPGRI) is an independent international scientific organization that seeks to improve the well-being of present and future generations of people by enhancing conservation and the deployment of agricultural biodiversity on farms and in forests. It is one of 15 Future Harvest Centres supported by the Consultative Group on International Agricultural Research (CGIAR), an association of public and private members who support efforts to mobilize cutting-edge science to reduce hunger and poverty, improve human nutrition and health, and protect the environment. IPGRI has its headquarters in Maccarese, near Rome, Italy, with offices in more than 20 other countries worldwide. The Institute operates through four programmes: Diversity for Livelihoods, Understanding and Managing Biodiversity, Global Partnerships, and Improving Livelihoods in Commodity-based Systems. -
11 the Evolutionary Strategy of Claviceps
Pažoutová S. (2002) Evolutionary strategy of Claviceps. In: Clavicipitalean Fungi: Evolutionary Biology, Chemistry, Biocontrol and Cultural Impacts. White JF, Bacon CW, Hywel-Jones NL (Eds.) Marcel Dekker, New York, Basel, pp.329-354. 11 The Evolutionary Strategy of Claviceps Sylvie Pažoutová Institute of Microbiology, Czech Academy of Sciences Vídeòská 1083, 142 20 Prague, Czech Republic 1. INTRODUCTION Members of the genus Claviceps are specialized parasites of grasses, rushes and sedges that specifically infect florets. The host reproductive organs are replaced with a sclerotium. However, it has been shown that after artificial inoculation, C. purpurea can grow and form sclerotia on stem meristems (Lewis, 1956) so that there is a capacity for epiphytic and endophytic growth. C. phalaridis, an Australian endemite, colonizes whole plants of pooid hosts in a way similar to Epichloë and it forms sclerotia in all florets of the infected plant, rendering it sterile (Walker, 1957; 1970). Until now, about 45 teleomorph species of Claviceps have been described, but presumably many species may exist only in anamorphic (sphacelial) stage and therefore go unnoticed. Although C. purpurea is type species for the genus, it is in many aspects untypical, because most Claviceps species originate from tropical regions, colonize panicoid grasses, produce macroconidia and microconidia in their sphacelial stage and are able of microcyclic conidiation from macroconidia. Species on panicoid hosts with monogeneric to polygeneric host ranges predominate. 329 2. PHYLOGENETIC TREE We compared sequences of ITS1-5.8S-ITS2 rDNA region for 19 species of Claviceps, Database sequences of Myrothecium atroviride (AJ302002) (outgroup from Bionectriaceae), Epichloe amarillans (L07141), Atkinsonella hypoxylon (U57405) and Myriogenospora atramentosa (U57407) were included to root the tree among other related genera. -
Taxonomy and Phylogeny in Triticeae: a Historical Review and Current Status
Advances in Plants & Agriculture Research Review Article Open Access Taxonomy and phylogeny in Triticeae: a historical review and current status Abstract Volume 3 Issue 5 - 2016 The Triticeae is an economically important tribe within the Poaceae. Because a number of cereal crops and forage grasses belong to the tribe it has attracted much scientific Mohannad G Al–Saghir attention covering many species: taxonomy, phylogeny, genetics, cytogenetic, genome Department of Environmental and Plant Biology, Ohio analyses (crossing ability and chromosome pairing), isoenzymes, molecular biology University, USA (RFLP, RAPD, PCR sequencing) and breeding. This paper contains a brief historical outline of the taxonomy of the tribe. Phylogenetic hypotheses regarding this tribe Correspondence: Mohannad G Al–Saghir, Department of inferred from different methods, techniques and approaches, are reviewed. The Environmental and Plant Biology, Ohio University, Zanesville, different phylogenies are discussed and compared and conflicts are elucidated. Ohio, USA, Email al–[email protected] Keywords: triticeae, phylogeny, taxonomy, poaceae, perennial species, durum Received: April 23, 2016 | Published: May 10, 2016 wheat, phylogenies, genetic diversity, cytogenetics, molecular biology, chromosomes, perennial, caespitose, thizomatous species Introduction as cited above. We can therefore conclude that the most appropriate outgroup for the tribe will be Bromus. The tribe Triticeae Dum is economically the most important tribe in the grass family (Poaceae). It encompasses between 350 and 500 Definition annual or perennial species,1–3 including the important cereal crops wheat (Triticum aestivium L.), durum wheat (T. turgidum sup. durum The Triticeae encompasses annual and perennial, caespitose or (Desf. MacKay) barley (Hordeum vulgare L.), rye (Secale cereal L.) thizomatous species. -
Molecular Analyses of the Genera Eremopyrum (Ledeb.) Jaub
Pak. J. Bot., 46(3): 769-774, 2014. MOLECULAR ANALYSES OF THE GENERA EREMOPYRUM (LEDEB.) JAUB. & SPACH AND AGROPYRON GAERTNER (POACEAE) BY PCR METHODS REMZİYE YILMAZ1, EVREN CABİ2* AND MUSA DOGAN3 1Middle East Technical University, Central Laboratory, Molecular Biology & Biotechnology R&D Center, 06530, Ankara, Turkey 2Namık Kemal University, Department of Biology, 59030 Tekirdağ, Turkey, 3Middle East Technical University, Department of Biological Sciences, 06530, Ankara-Turkey *Corresponding author’s e-mail: [email protected]; [email protected]; Ph: +90-282-2502670 Abstract RAPD-PCR (Random Amplified Polymorphic DNA Polymerase Chain Reaction) and Post PCR (Polymerase Chain Reaction) Melting Curve Analysis (MCA) have been used to investigate the pattern of genetic variation among some species in the genera Eremopyrum (Ledeb.) Jaub. & Spach and Agropyron Gaertner (Poaceae). Thirteen primers have been used in the study based on the RAPD-PCR and MCA analyses. Each species produced a distinct pattern of DNA fragments which have been used as a measure of the degree of relationship between species by means of using the RAPD-PCR results with three primers selected for identifying the genetic similarities. Polymorphic melting profiles have been obtained with Post PCR MCA method using three primers. Genetic similarities are calculated for all the species studied with RAPD-PCR and MCA methods, the dendrograms are obtained with the MVSP (Multi Variate Statistical Package) software using UPGMA (Unweighted Pair Group Method with Arithmetic Averages) and Jaccard’s Coefficient. Polymorphism between 18 populations of Eremopyrum and 6 Agropyron populations and within the species are determined by using RAPD-PCR and Post PCR melting curve analysis (MCA) respectively. -
Who's Related to Whom?
149 Who’s related to whom? Recent results from molecular systematic studies Elizabeth A Kellogg Similarities among model systems can lead to generalizations systematist’s question-why are there so many different about plants, but understanding the differences requires kinds of organisms? Studies of the evolution of develop- systematic data. Molecular phylogenetic analyses produce ment demand that the investigator go beyond the model results similar to traditional classifications in the grasses system and learn the pattern of variation in its relatives (Poaceae), and relationships among the cereal crops [3*]. This requires a reasonable assessment of the relatives’ are quite clear. Chloroplast-based phylogenies for the identity. Solanaceae show that tomato is best considered as a species of Solarium, closely related to potatoes. Traditional Knowledge of plant relationships has increased rapidly classifications in the Brassicaceae are misleading with in the past decade, reflecting partly the development regard to true phylogenetic relationships and data are only of molecular systematics. It has been known for some now beginning to clarify the situation. Molecular data are time that plant classifications do not reflect phylogeny also being used to revise our view of relationships among accurately, even though both phylogeny and classification flowering plant families. Phylogenetic data are critical for are hierarchical. The hierarchy of classification was interpreting hypotheses of the evolution of development. imposed in the late 18th century, well before ideas of descent with modification (evolution) were prevalent [4]. These pre-evolutionary groups were then re-interpreted in Address an evolutionary context, and were assumed to be products Harvard University Herbaria, 22 Divinity Avenue Cambridge, MA of evolution, rather than man-made artefacts. -
Download.Jsp (Accessed on 30 May 2021)
agronomy Article Morphological, Genetic and Biochemical Evaluation of Dasypyrum villosum (L.) P. Candargy in the Gene Bank Collection VojtˇechHolubec 1,* ,Václav Dvoˇráˇcek 2 , Leona Svobodová Leišová 3 and Sezai Ercisli 4 1 Department of Gene Bank, Crop Research Institute, Drnovská 507, 161 06 Prague, Czech Republic 2 Department of Product Quality, Crop Research Institute, Drnovská 507, 161 06 Prague, Czech Republic; [email protected] 3 Department of Molecular Biology, Crop Research Institute, Drnovská 507, 161 06 Prague, Czech Republic; [email protected] 4 Department of Horticulture, Agricultural Faculty, Ataturk University, Erzurum 25240, Turkey; [email protected] * Correspondence: [email protected]; Tel.: +42-02-3302-2497 Abstract: The Dasypyrum villosum gene bank collection, comprising 32 accessions, was characterized morphologically and genetically for resistance to leaf diseases and for quality parameters of seeds with specific accent to protein polymorphism and protein and starch composition. The collected material represented nearly the whole distribution area in the Mediterranean. For SSR analysis, a set of 40 SSR markers for wheat was selected. A matrix of distances between genotypes was calculated using Simple Matching dissimilarity coefficient in the DARwin software. The collection was scored for resistance to powdery mildew, brown, stripe and stem rusts. A modified SDS-PAGE method Citation: Holubec, V.; Dvoˇráˇcek,V.; with clear interpretation of high and low molecular glutenin subunits (HMW, LMW) was used for Svobodová Leišová, L.; Ercisli, S. Morphological, Genetic and characterization of accessions. Morphological phenotyping revealed considerable diversity allowing Biochemical Evaluation of Dasypyrum the distinguishing of clusters tracing the geographical origin of accessions. Genetic diversity showed villosum (L.) P.