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BSA Trait Positioning of Plant

INQUIRY

INTRODUCTIONS

BSA Trait Positioning

Bulked-Segregant Analysis (BSA), also known as QTL-seq, is used for gene mapping of qualitative traits or quantitative traits with major genes, and has a wide range of applications in genetics and breeding. First, select two parents with extreme differences in phenotypic traits to construct a family, and perform whole-genome resequencing on the two sample pools obtained by mixing the offspring with extreme phenotypes of the target traits in this family. The detected DNA difference fragments between the two pools are the candidate regions. By calculating the difference between the genotype frequencies of the two mixed pools, the region where the QTL related to the trait is located can be determined. Further combining with the mutation information of the coding genes in this interval, candidate genes and candidate functional mutations for controlling traits can be determined.

SERVICES

With years of rich experience, Lifeasible provides BSA trait positioning service. We provide a one-stop service model. We complete a series of processes from sample extraction, quality testing, sequencing, biological information analysis to making reports.

Workflow of BSA trait positioning service

Workflow of BSA trait positioning service

Analysis content

  • Sequencing data quality assessment (base composition distribution, etc.)
  • Raw data filtering to remove reads containing connectors and low-quality reads
  • Align with reference genome

Aligned genome statistics

Insert Fragment Statistics

Analysis of gene coverage

In-depth analysis of sequencing

  • SNP analysis statistics

SNP detection

SNP position and function annotation

SNP conversion and transversion information statistics

SNP heterozygous information statistics

  • InDel analysis statistics

InDel detection

InDel location and function notes

InDel heterozygous information statistics

  • BSA analysis

Comparison of polymorphism between parents

SNP frequency analysis of offspring (calculation of SNP index and ΔSNP index)

Target traits related area positioning

Analysis of candidate genes in the target region

Sample requirements

  • Sample concentration≥300ng/μl, total amount≥6μg, OD260/280=1.8~2.0.

(The amount of DNA required is related to the number of libraries constructed and the type of library)

Project cycle

  • The entire project generally takes about 2 months.

Feedback to customers

  • Raw data
  • A project report includes experimental process, instrument parameters, analysis methods and results, etc.

Service process

Service process

ADVANTAGES

  • Our experienced researchers help you with scientific plan design.
  • The advanced illumina sequencing platform is used to quickly and efficiently read high-quality sequencing data.
  • BSA can be used for the initial gene mapping of qualitative traits or quantitative traits with major genes (for example, plant disease resistance), or the study of single traits.
  • With the advantages of high speed, high density, and high quality, it has been widely used in the construction of genetic maps of various model and non-model organisms.
  • Personalized customized package service.

※ For research or industrial use.

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