نتایج جستجو برای: genotype selection

تعداد نتایج: 402494  

Journal: :Agronomy 2022

Often, yam cultivars grown in different agro-ecologies show differential responses across production environments, a term known as genotype-by-environment interaction. Such interaction makes selection of the best genotypes under varied environments more complex. This study evaluated twenty six test to assess genotype, environment, and their effects on tuber yield, response mosaic virus, dry mat...

H. Ghiasi, M. Khaldari, R. Taherkhani

The effect of ordinary and restricted selection indices on body weight at different ages changes in birth weight of Iranian Moghani sheep was studied. Traits in the aggregate genotype were birth weight (BW), body weights at 3 (BW3) and 12 months of age (BW12). Two ordinary selection indices (I1 and I2) and two restricted selection indices (R1 and R2) were constructed. BW and BW3 were included i...

Journal: :Journal of phycology 2012
Alena S Gsell Lisette N de Senerpont Domis Anna Przytulska-Bartosiewicz Wolf M Mooij Ellen van Donk Bas W Ibelings

Marine and freshwater phytoplankton populations often show large clonal diversity, which is in disagreement with clonal selection of the most vigorous genotype(s). Temporal fluctuation in selection pressures in variable environments is a leading explanation for maintenance of such genetic diversity. To test the influence of temperature as a selection force in continually (seasonally) changing a...

Journal: :Genetics 2017
Sebastian Novak Richard Kollár

Dispersal is a crucial factor in natural evolution, since it determines the habitat experienced by any population and defines the spatial scale of interactions between individuals. There is compelling evidence for systematic differences in dispersal characteristics within the same population, i.e., genotype-dependent dispersal. The consequences of genotype-dependent dispersal on other evolution...

Journal: :Biodiversitas 2022

Abstract. Suwarti, Ghulamahdi M, Sopandie D, Trikoesoemaningtyas, Sulistyono E, Azrai M. 2022. Secondary trait and index selection determination for maize genotype in acidic tidal swamp environment. Biodiversitas 23: 4169-4179. Determining secondary traits as complementary genotypes abiotic stress environment is compulsory since yield-based usually provides biased result. This study aimed to ob...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1969
W W Anderson

An algebraic model is presented for selection by the mating advantage of rare genotypes. In accordance with the results of recent experiments, the selective advantage is formulated as inversely proportional to genotype frequency. The model applies to any number of alleles at an autosomal locus or at a sex-linked locus, and it provides for a different intensity of selection for each genotype in ...

Journal: :Bioinformatics 2006
Jingwu He Alex Zelikovsky

UNLABELLED The search for the association between complex diseases and single nucleotide polymorphisms (SNPs) or haplotypes has recently received great attention. For these studies, it is essential to use a small subset of informative SNPs accurately representing the rest of the SNPs. Informative SNP selection can achieve (1) considerable budget savings by genotyping only a limited number of SN...

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