Phenotypic selection analysis
WebSep 17, 2024 · We tested this hypothesis by synthesizing 1,366 phenotypic selection coefficients from 37 species exposed to various anthropogenic disturbances, including harvest. We used a paired design that only included studies measuring selection on the same traits in both human-disturbed and control (not obviously human-disturbed … WebApr 15, 2024 · Phenotypic trait analysis is a relatively intuitive and effective method to study plant genetic diversity. Studying plant phenotypic traits can not only understand the mechanism of plant genotype and environmental …
Phenotypic selection analysis
Did you know?
WebAlthough many selection estimates have been published, the environmental factors that cause selection to vary in space and time have rarely been identified. One way to identify … WebNov 10, 2024 · FlyCHC: Phenotypic selection on _Drosophila serrata_ CHC traits; Galls: Gall size; glam: Calculating gradients based on the Lande-Arnold Method; glamx: Comparison …
WebFeb 17, 2016 · In the present study, we measured phenotypic selection on floral signals in several lowland and mountain populations in the orchid Gymnadenia odoratissima; most of these populations were investigated in two consecutive flowering seasons. In total, 1028 plants were analyzed. WebAug 2, 2024 · It is demonstrated that the phenotypic covariance between fitness and a trait, used as an estimate of the selection differential in estimating selection gradients, has two components: a component induced by selection itself and a component due to the effect of environmental factors on fitness. 617 View 1 excerpt, references background
WebAug 4, 2014 · The aims of this work were: i) to assess the advantage for the predictive ability when using a spatial model for phenotypic analysis, ii) to compare stage-wise approaches for GP when the data are weakly connected across years, and iii) to compare AIC and GP-CV as methods of selection of models for phenotypic data analysis towards GP in rye. … WebApr 12, 2024 · The selection of genotypes with high yield, farmers preferred traits and wide or specific environmental adaptation is important for enhancing the production and productivity of bambara groundnut. Improvement of traits in bambara groundnut could be achieved through phenotypic selection with the valuation of different genetic parameter …
WebFeb 12, 2024 · We examined selection on expression across environments and found patterns of antagonistic pleiotropy ( S exhibits opposite directionality between …
WebNov 14, 2024 · PHENOTYPIC SELECTION ANALYSIS. To quantify phenotypic selection on traits, multiple regression was used to provide estimates of selection gradients, whereas individual univariate models were used to provide estimates of selection differentials. Selection gradients (β) ... lawyers choice llcPhenotypic selection occurs when individuals with different characteristics (i.e., different phenotypes) differ in their survival, fecundity, or mating success. The idea of phenotypic selection traces back to Darwin and Wallace (1858), and selection is widely accepted as the primary cause of adaptive evolution within … See more Selection is the nonrandom differential survival or reproduction of phenotypically different individuals. Thus, selection requires variation, whereby individuals differ in some of their … See more Body size is an especially common target of selection (box 1). This is perhaps not surprising, given that an organism's body size affects nearly every aspect of its biology, from its … See more In principle, measuring phenotypic selection is straightforward. Suppose we are interested in possible selection acting on some trait, z, in a … See more Numerous studies have measured phenotypic selection in natural populations using the methods described above (Endler 1986). … See more lawyer scholarshipsWebPhenotypic selection analysis has been used to test hypotheses about the evolution of correlated suites of functional traits. For example, Kimball et al. detected selection for a combination of traits (high water-use efficiency and high growth rate) that was never observed in natural populations, suggesting that the evolution of these traits ... kate and william wedding bridesmaids