Chromosome numbers of carex

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August undefined, 2024

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

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

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). 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. citizens advice bureau church gresley

Chromosome numbers of Carex (Cyperaceae) and their …

WebChromosome 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. … WebMar 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 … 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). dick blick chicago il

(Open Access) Chromosome numbers of Carex (2011) Olga …

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 ... Web10 reasons why you will fall in love with MU . Ask our ambassador . Research dick blick clear gloss underglazeWebDec 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. dick blick cleveland

"WebThe genus Carex exhibits karyological peculiarities related to holocentrism, specifically extremely broad and almost continual variation in … " - Chromosome numbers of carex

Chromosome numbers of carex

Chromosome-level genome assembly of sea cucumber reveals …

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 …

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WebFeb 10, 2024 · Chromosome numbers were determined for the first time in three species (Carex cilicica, 2n = 54; C. phyllostachys, 2n = 56; C. randalpina, 2n = 78), two … WebChromosome counts for seventeen species of Carex section Ovales are reported. They range from n- 26 + IV to »=40. Counts for Carex alata, C. hyalina, C. longii , C. ozarkana …

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 … WebFeb 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).

WebJan 31, 2024 · Carex has long been studied in terms of the chromosome number, with reports ranging from 2n = 10 to 2n = 132 ( C. donnell-smithii and C. perplexa, respectively; Heilborn, 1932; Tanaka, 1949; Davies, 1956; Naczi, 1999; Roalson, 2008; Hipp … 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 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 genomic GC content varied from 34·8 % to 40·6 % from C. secalina to C. firma.

WebJul 16, 2013 · In Carex, many species have a high number of chromosomes, n = 20–40, and small sized chromosomes (Roalson 2008 ). Our present and previous data showed that Siderostictae clade members have the lowest chromosome number of 2 n = 12 and large somatic metaphase chromosomes ranging from 1.5 to 4.0 μm in length (Hoshino … dick blick clearanceWebIn 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. dick blick chicagoWebChromosome 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. … dick blick codeWebThe number of chromosomes in Carex varies from n = 6 to n = 62 and spans actually a con-tinuous series from n = 6 to n = 47, more than 100 species showing different cytotypes [2,17]. In addition, the chromosome count is not … citizens advice bureau cost of livingWebChromosome 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 ... citizens advice bureau clitheroeWebJun 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 ... dick blick clayWebThe 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. citizens advice bureau christchurch dorset