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
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