Chromosome numbers of carex

WebJun 29, 2011 · Chromosome 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 ... 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…

[PDF] Chromosome numbers of Carex (Cyperaceae) and their …

WebMar 23, 2024 · We have previously assembled the genome of Carex littledalei, which is a diploid with 29 chromosomes 4. Basic chromosome numbers and ploidy are varied in different Kobresia species and difficult ... 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). birmingham police department case information https://dearzuzu.com

Seven New Species and One New Combination inCarex …

WebApr 4, 2024 · InCarex, most of the chromosome counts are for European, Eastern Asian and North American species.However,for 75% of thespeciesinthisgenus thereareno chromosome numbers recorded (cf. Roalson 2008). WebJan 28, 2024 · It should also be remembered that in Carex, the complexity of chromosome variation is due primarily to the presence of diffuse centromeres, which causes chromosomes either wholly or in pieces to be transmitted in rather less organized fashion than in species with chromosomes possessing single, well-defined centromeres … 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 … birmingham police department address

Chromosome numbers of Carex (Cyperaceae) and their …

Category:Chromosome Counts of Carex Section Ovales ScholarWorks

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Chromosome numbers of carex

Chromosome Counts of Carex Section Ovales ScholarWorks

WebApr 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 … WebSearch 210,524,460 papers from all fields of science. Search. Sign In Create Free Account

Chromosome numbers of carex

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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 … WebDec 5, 2008 · Heilborn ( 1924) noted chromosome number maxima at 2 n = 56, 84, and 112, and from these he inferred the base haploid chromosome number (X) of Carex to be 7. Based on a greater number of counts, Wahl ( 1940) showed that the optima were probably not multiples of 7, and he inferred a secondary base number of X = 5.

WebJun 29, 2011 · Chromosome counts for eight species of Carex section Ovales were determined (c. bebbii, C. crawfordii, C. integra, C. microptera, C. pachystachya, C. … WebJan 31, 2024 · These in turn may influence ecology and evolutionary trajectories profoundly. Sedges of the genus Carex (Cyperaceae) comprise ca. 2000 species with holocentric chromosomes that evolve almost exclusively by fission and fusion. The genus exhibits a phenomenal range in chromosome number (2n =10–132).

WebThe chromosome number variation within species is more closely related with morphological diversity and diverging time (genetic diversity) than geographic diversity (Hipp et al., 2010; Chung et al., Table 1. Species, locality, voucher specimens, and chromosome numbers of Carex studied. Taxon (locality, voucher specimen) Chromosome numbers ... WebDec 5, 2008 · Heilborn ( 1924) noted chromosome number maxima at 2 n = 56, 84, and 112, and from these he inferred the base haploid chromosome number (X) of Carex to …

WebChromosome number evolves independently of genome size in a clade with nonlocalized centromeres (Carex: Cyperaceae). Evolution. 2012 Sep 1;66(9):2708-22. Cusimano N, Sousa A, Renner SS. Maximum likelihood inference implies a high, not a low, ancestral haploid chromosome number in Araceae, with a critique of the bias introduced by ‘x ...

Web2 days ago · DOI: 10.1073/pnas.2213512120. A large team of marine, molecular and genetic biologists affiliated with a number of institutions in China has conducted what they describe as a high-quality ... dangerous featuring joywaveWebThe 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. birmingham police department directoryWebChromosome 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. … dangerous fellows eugeneWebMar 10, 2011 · The number of chromosomes in Carex varies from n = 6 to n = 62 and spans actually a continuous series from n = 6 to n = 47, more … birmingham police department alWebThe 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. birmingham police department newsWebChromosome 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 … birmingham police department north precinctWebThe results of this study indicate that the position of C. cilicica in Aulocystis section may raise doubts, and attention was paid to the relationship between C. phyllostachys and taxa of the subgenus Carex section Gynobasidae. Counting chromosomes is the first step towards a better understanding of the karyotype evolution and the role of chromosome … dangerous fiancee spoiler