WebThe chromosome number ofC. gholsonii,deter- mined from two populations in Florida, is 16 II 1 1IV. Carex infirminerviais widespread but infre- quent throughout much of the western United States and western Canada.
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WebJan 31, 2024 · We estimated ca. 42 chromosomes as the most likely ancestral diploid number (pp = 0.20), but chromosome numbers in Carex have varied so rapidly that this estimate should be considered a point estimate within a very broad confidence interval (less supported peaks around 2n = 16 and 2n = 57; data S3 in Márquez-Corro, 2024). WebCarex praecox, the spring sedge, is a species of flowering plant in the genus Carex, native to Europe, western Asia, and Mongolia. [2] [3] Its diploid chromosome number is 2n=58, with some uncertainty. [4] References [ edit] ^ Spic. Fl. Lips.: 63 (1771) ^ a b "Carex praecox Schreb". Plants of the World Online.
WebIn this study, we investigate genome size and chromosome number evolution in 87 species of Carex, one of the most species-rich genera of flowering plants and one that has undergone an exceptionally high rate of chromosome rearrangement. WebCHROMOSOME NUMBERS AND DIMEN- SIONS, SPECIES-FORMATION AND PHYLOGENY IN THE GENUS CAREX BY 0.HEILBORN STOCKHOLM I. INTRODUCTION. I N 1900 JUEL published his study on Carex acuta L. (C. gracilis CURT.), this being the first investigation made on the cytology of the genus Carex. JUEL'S work deals principally …
WebThe exact chromosome numbers were known for 96 measured samples and were taken from the available literature for other taxa. All relationships were tested in a phylogenetic framework using the ITS tree of 105 species. Key Results The 1C genome size varied between 0·24 and 1·64 pg in Carex secalina and C. cuspidata, respectively. WebWe present cases of Y-linked male infertility in terms of (i) anomalies of the Y chromosome structure/number; (ii) Y chromosome misbehavior in a normal genetic background; (iii) Y chromosome copy number variations (CNVs). We discuss possible explanations of male infertility caused by mutations, lower or higher number of copies of otherwise wild ...
The genus Carex was established by Carl Linnaeus in his work Species Plantarum in 1753, and is one of the largest genera of flowering plants. Estimates of the number of species vary from about 1100 to almost 2000. Carex displays the most dynamic chromosome evolution of all flowering plants. Chromosome numbers range from n = 6 to n = 66, and over 100 species are known to show variation in chromosome number within the species, with differences of up to 10 chromos…
WebChromosome counts for eight species of Carex section Ovales were determined (C. bebbii, C. crawfordii, C. integra, C. microptera, C. pachystachya, C. praticola, C. preslii, and C. subfusca). Combined with data from previous studies in the sect. Ovales, chromosome number variability is observed within individuals, populations, and species. Counts from … raymond laserWebChromosome counts for eight species of Carex section Ovales were determined (C. bebbii, C. crawfordii, C. integra, C. microptera, C. pachystachya, C. praticola, C. preslii, and C. … raymond larson njWebChromosome numbers were determined for 97 samples of 95 sedge taxa (Carex) from the following countries: Austria (6 records), Bulgaria (1), the Canary Islands (Spain, 1), Cape Verde (1), the Czech Republic (51), Hungary (1), Italy (2), Norway (8), Russia (15), Slovakia (1), Sweden (1) and 9 North American plants cultivated in Czech botanical gardens. … raymond lasky conklin nyWebThe exact chromosome numbers were known for 96 measured samples and were taken from the available literature for other taxa. All relationships were tested in a phylogenetic … simplified form for food stampsWebPreslia 83: 25–58, 2011 25. Chromosome numbers of Carex. Chromozomové počty druhů rodu Carex. OlgaRotreklová1, Petr B u r e š1, Radomír Ř e p k a2, VítGrulich1, Petr Š m a r d a1,IvanaHralová1, František Z e d e k1 & Tomáš K o u t e c k ý2 simplified force diagramWebApr 13, 2024 · A lectotype is designated for the name Carex curvata Knaf on a herbarium specimen found in the PR (National Museum, Prague). ... Accepted names, hybrids, synonyms, distribution, chromosome numbers. Margraf Publishers, Weikersheim, 726 pp. Koopman, J. (2024) Section Ammoglochin (Carex, Cyperaceae) in Poland. Doctoral … raymond last name originWebFeb 1, 2015 · The genus CarexL. (Cyperaceae), with approximately 2000 species worldwide, is one of the most species-rich angiosperm genera (Judd et al., 2007). Moreover, Carexis the most diversified flowering plant genus in the temperate areas of the Northern Hemisphere (Escudero et al., 2012a). simplified flowers