Divergent Selection of Chickens for Antibody Production to Sheep Erythrocytes: Age Effect in Parental Lines and Their Crosses

1985 ◽  
Vol 29 (1) ◽  
pp. 150 ◽  
Author(s):  
C. O. Ubosi ◽  
W. B. Gross ◽  
P. B. Siegel
Keyword(s):  
Antibody Production ◽  
Age Effect ◽  
Divergent Selection ◽  
Sheep Erythrocytes ◽  
Parental Lines ◽  
Selection Of

Divergent Selection of Chickens for Antibody Response to Sheep Erythrocytes: Kinetics of Primary and Secondary Immunizations

1985 ◽  
Vol 29 (2) ◽  
pp. 347 ◽  
Author(s):  
C. O. Ubosi ◽  
E. A. Dunnington ◽  
W. B. Gross ◽  
P. B. Siegel
Keyword(s):  
Antibody Response ◽  
Divergent Selection ◽  
Sheep Erythrocytes ◽  
Kinetics Of ◽  
Selection Of

Analisis Keragaman Genetik 28 Nomor Koleksi Kakao (Theobroma cacao L.) Berdasarkan Marka SSR

2017 ◽  
Vol 4 (1) ◽  
pp. 13 ◽  
Author(s):  
Ilham Nur ardhi Wicaksono ◽  
Rubiyo Rubiyo ◽  
Dewi Sukma ◽  
Sudarsono Sudarsono
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Plant Molecular Biology ◽  
Average Value ◽  
Germplasm Collections ◽  
Ctab Method ◽  
Parental Lines ◽  
Biology Laboratory ◽  
Superior Clones ◽  
Selection Of

<em>Analysis of genetic diversity of cacao germplasm collections using molecular markers has an important role in the assembly of new superior clones. The availability of commercial and superior local clones could increase the success of new superior clones’ assembly. Hence, the genetic diversity analysis of these materials needs to be done. The study was aimed to analyze genetic diversity of 28 cacao collections based on SSR markers that would be useful for selection of parental lines. The research was conducted in the Integrated Laboratory, Indonesian Industrial and Beverage Crops Research Institute, Sukabumi, and Plant Molecular Biology laboratory, Bogor Agricultural University, from November 2015 to May 2016.</em> <em>Analysis of genetic diversity was conducted using 28 cacao clones (13 superior local clones and 15 commercial clones). DNA was extraction using CTAB method, which then amplified by PCR technique using 20 SSR primers. The result showed that all SSR markers used in this study were polymorphic with an average value of PIC was high (57%). Phylogenetic tree constructed using DARwin program version 6.05 is divided into 3 major groups, which placed commercial and superior local clones together in each group. Superior local clones observed herein might have close relationships with commercial clones that have long been cultivated in Indonesia. Furthermore, some cacao clones could potentially be parental lines because they had high genetic distance. The results showed that SSR markers are powerful tools to determine potential parental lines, which is expected to increase the chances of heterosis in their progenies.</em>

Divergent Selection of Pattern Recognition Receptors in Mammals with Different Ecological Characteristics

2018 ◽  
Vol 86 (2) ◽  
pp. 138-149 ◽  
Author(s):  
Ran Tian ◽  
Meixiu Chen ◽  
Simin Chai ◽  
Xinghua Rong ◽  
Bingyao Chen ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
Pattern Recognition Receptors ◽  
Divergent Selection ◽  
Ecological Characteristics ◽  
Selection Of

scholarly journals RELATIVE AGE EFFECT AMONG YOUNG CROATIAN TAEKWONDO COMPETITORS

2021 ◽  
pp. 86-89
Author(s):  
Matej Babić ◽  
Dražen Čular ◽  
Igor Jelaska
Keyword(s):  
Age Effect ◽  
Chi Square ◽  
Weight Category ◽  
Relative Age ◽  
Relative Age Effect ◽  
Significant Difference ◽  
Chi Square Test ◽  
Age Range ◽  
Effect Of Age ◽  
Selection Of

Aim of this research was to identify and analyse relative age effect (RAE) on sample composed of young Croatian taekwondo competitors. In order with aim of research, for medal winners (n1=72) and other competitors (n2=187) who competed at Croatian taekwondo cadet championship 2015, date of birth, weight category and sport success were extracted. By conducting of Chi-square test on all competitors (n=259) it is proven there is non-significant difference (χ2=12.28; p=0.34) between expected and observed frequencies according to month of birth. Furthermore, significant difference between observed and expected frequencies according to year of birth of medal winners (χ2=45.31; p<0.01) is confirmed. Results of this research are pointing on presence of RAE which could lead to mistakes in selection of young athletes. Authors are suggesting to minimize allowed age range for competition, or to separate competitors in more age categories, which would enable more equal competitions and reduce effect of age on sport success.

scholarly journals Culture of Neospora caninum in the presence of a Mycoplasma Removal Agent results in the selection of a mutant population of tachyzoites

Parasitology ◽  
2005 ◽  
Vol 130 (6) ◽  
pp. 607-610
Author(s):  
A. HUDSON ◽  
J. T. ELLIS
Keyword(s):  
Tissue Culture ◽  
Cell Cultures ◽  
Neospora Caninum ◽  
Secreted Proteins ◽  
Eukaryotic Cells ◽  
Treatment Results ◽  
Mutant Population ◽  
Sds Page ◽  
Parental Lines ◽  
Selection Of

Mycoplasmas are common contaminants of eukaryotic cells grown in tissue culture. A commercially available Mycoplasma Removal Agent (MRA) was therefore assessed for its effect on tachyzoites of Neospora caninum, in order to determine its suitability for further use in parasite cell cultures. Analyses of tachyzoite and excreted-secreted proteins and antigens by SDS-PAGE and Western blotting show that MRA treatment results in the rapid selection of a mutant population that differs from the control and parental lines in its protein and antigen content. The treatment of N. caninum cultures with MRA is therefore not recommended for the eradication of Mycoplasma.

Effects of recurrent selection on populations of various generations in wheat by using the Tai Gu single dominant male-sterile gene

1996 ◽  
Vol 126 (4) ◽  
pp. 397-402 ◽  
Author(s):  
X. W. Wang ◽  
J. R. Lap ◽  
L Fan ◽  
R. B. Zhang
Keyword(s):  
Multivariate Analysis ◽  
Recurrent Selection ◽  
Dominant Gene ◽  
Dominant Male ◽  
Mass Selection ◽  
Base Population ◽  
Male Sterile ◽  
Single Character ◽  
Parental Lines ◽  
Selection Of

SUMMARYMass selection (MS) and bulk selection of a single character (CS) were used for the improvement of a base population, Bl, which was composed of Tai Gu male-sterile progenies of ten high protein content and four high yielding parental lines of wheat (Triticum aestivum L.), transferred by 6–10 backcrossing generations, with equal numbers of plants from each line. Backcross mass selection (BS) was used for the improvement of a second base population, B2, which was formed by Tai Gu malesterile plants of four high yielding parental lines, again with equal numbers of plants from each line. Three cycles of selection were conducted for both population Bl and B2. Direct genetic advances of sterile plants for six traits were studied. The results indicated that use of the Tai Gu male-sterile single dominant gene is effective for recurrent selection of wheat. For improvement of a single character, CS was the most effective method, of which the selective effect in the first cycle (Cl) was greater than in the second (C2) and the third cycle (C3), although multivariate analysis snowed that the CS method was not conducive to the maintenance of variation in a population. The greatest response to selection was found in C2 with the MS method. Multivariate analysis also indicated that both the MS and BS methods increased the variation in the population, but MS was found to be the best selective method as judged by the mean response over three cycles of selection.

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