What is a magic population?
What is a magic population?
Multiparent advanced generation intercross (MAGIC) populations were recently developed to allow the high-resolution mapping of quantitative traits. We present a genetic linkage map of an elite but highly diverse eight-founder MAGIC population in common wheat (Triticum aestivum L.).
What is Multiparent advanced generation Intercross?
Summary. Multi-parent advanced generation inter-cross (MAGIC) populations are an emerging type of resource for dissecting the genetic structure of traits and improving breeding populations. We developed a MAGIC population for cowpea (Vigna unguiculata L. Walp.) from eight founder parents.
What is a mapping population?
A population that is suitable for linkage mapping of genetic markers is known as mapping population. Mapping populations are generated by crossing two or more genetically diverse lines and handling the progeny in a definite fashion. Generally, the parents used for hybridization will be from the same species.
What are the prerequisites of QTL mapping?
The requirements of QTL mapping are mapping population, saturated linkage map, phenotypic screening and statistical package. Ideally markers should be <5 cm from a gene or QTL.
How do you make recombinant inbred lines?
A recombinant inbred line (RIL) population is developed using single seed descent from the F2 generation. The result is a set of homogeneous, homozygous lines for which large amounts of seed can be produced for replicated trials. This type of population is often useful for mapping QTLs.
What is F2 mapping population?
The simplest form of a mapping population is F2 population. Parent 1 (P1) and parent 2 (P2) are two parents contrasting for trait of interest crossed to get F1 population. Individual F1 plant is then selfed to produce an F2 population. F2 populations are outcome of single meiotic cycle.
A multi-parent advanced generation inter-cross (MAGIC) population developed through random-mating of multiple diverse parents has the ability to break this negative correlation. Genotyping-by-sequencing (GBS) is a method that can rapidly identify and genotype a large number of single nucleotide polymorphisms (SNP).
What is gengenotyping magic?
Genotyping a MAGIC population using GBS technologies will enable us to identify marker-trait associations with high resolution. An Upland cotton MAGIC population was developed through random-mating of 11 diverse cultivars for five generations.
What are the markers associated with fiber quantitative trait loci (QTL)?
By employing a mixed linear model, GWAS enabled us to identify markers significantly associated with fiber quantitative trait loci (QTL). We identified and validated one QTL cluster associated with four fiber quality traits [short fiber content (SFC), strength (STR), length (UHM) and uniformity (UI)] on chromosome A07.
