Genome size variation in the genus avena
WebAug 15, 2024 · The accessions of Avena sativa, Avena sterilis, and Avena fatua were found to be hexaploid with an average genome size of 26.09, 26.13, and 25.74, respectively … WebAug 1, 2024 · The monoploid genome size (1C x) of all Daucus accessions with 18 chromosomes was similar (about 0.5 pg); however, for the species with higher chromosome number it varied from 0.510 to 1.614 pg and did not relate to n. Also, in Daucus taxa there was no correlation between the nuclear DNA content and chromosome number (r = …
Genome size variation in the genus avena
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WebJan 17, 2016 · We demonstrate that the average genome size of C genome diploid species (2C = 10.26 pg) is 15% larger than that of A genome species (2C = 8.95 pg), and that … WebJan 17, 2016 · Genome size is an indicator of evolutionary distance and a metric for genome characterization. Here, we report accurate estimates of genome size in 99 …
WebDec 8, 2024 · Avena macrostachya differs from diploid oat species with the C-genome in symmetric karyotype with a predominance of equal-armed chromosomes, absence of … WebGenome size is an indicator of evolutionary distance and a metric for genome characterization. Here, we report accurate estimates of genome size in 99 accessions …
WebSep 2, 2024 · Background: Oat (Avena sativa L.) is a recognized health-food, and the contributions of its different candidate A-genome progenitor species remain inconclusive. Here, we report chloroplast genome sequences of eleven Avena species, to examine the plastome evolutionary dynamics and analyze phylogenetic relationships between oat and …
WebJan 17, 2016 · We demonstrate that the average genome size of C genome diploid species (2C = 10.26 pg) is 15% larger than that of A genome species (2C = 8.95 pg), and that this difference likely accounts for a progression of size among tetraploid species, where AB < AC < CC (average 2C = 16.76, 18.60, and 21.78 pg, respectively).
WebJul 7, 2024 · Genome size variation and evolutionary forces behind have been long pursued in flowering plants. The genus Oryza, consisting of approximately 25 wild species and two cultivated rice, harbors eleven extant genome types, six of which are diploid (AA, BB, CC, EE, FF, and GG) and five of which are tetraploid (BBCC, CCDD, HHJJ, HHKK, … harvard undocumented studentsWebGenome size can have profound effects on many as-pects of plant biology. For example, variations in ge-nome size are related to phenotypic traits such as leaf size (Sugiyama 2005), leaf architecture and metabolic rates (Beaulieu et al. 2007a), seed mass (Beaulieu et al. 2007b),andcellsize(Henryetal.2014).Genomesizecan harvard unitarian churchWebNov 8, 2024 · Cytologically, three ploidy levels are recognized in the genus Avena: diploid, tetraploid, and hexaploid, with a base number of seven chromosomes [ 6, 7 ]. The … harvard undergraduate tuition and feesWebAug 13, 2016 · The genus Avena shows a wide variation in genome size, from 4.1 to 12.8 Gbp, which is determined primarily by ploidy level, but may also be influenced by variation in the types and amounts of repeated DNA among genomes (Yan et al. 2016 ). harvard united church of christWebAcreage of oat (Avena sativa L.) in Europe was steadily declining during the last century due to less breeding progress compared to other cereals. However, oat remains a valuable crop for food and feed, as well as for sustainable crop rotations. To unravel the genetic and phenotypic diversity in oat breeders’ germplasm collections, a diversity panel including … harvard united nationsWebIn order to assess the genome homologies of a number of diploid and tetraploid species of Avena, two meiotic characters — mean chiasmata per cell and frequency of types of pairing configurations — have been studied in the species and in a number of diploid, triploid and tetraploid hybrids. The results indicate extensive structural differentiation of the genome … harvard undergraduate research fundingWebApr 27, 2024 · The genus Avena comprises four distinct genomes organized in diploid (AA or CC), tetraploid (AABB or AACC) and hexaploid species (AACCDD), constituting an interesting model for phylogenetic analysis. The aim of this work was to characterize 45S rDNA intergenic spacer (IGS) variability in distinct species representative of Avena … harvard undergraduate women in business