Homoeologous Region Determining Method by Homo Junction Fingerprint Method, Homoeologous Region Determining Device, and Gene Screening Method

A homologous region determining method, comprising the steps of:

• selecting polymorphic markers as the subject of determination regarding homozygosity selected from among polymorphic markers of sample DNA indicating a state of diploidy or polyploidy;
• determining whether the bases making up the polymorphic markers selected by the polymorphic marker selection section indicate homozygosity or not;
• acquiring the homozygous region information showing the sample DNA region in which the polymorphic markers that have been determined as corresponding to a state of homozygosity by the homozygosity determining step are contiguous;
• and
• determining that a homozygous region is a homologous region, when continuous probability and/or continuous distance regarding polymorphic markers included in the homozygous region information satisfy given homologous determination conditions.

A homologous region determining device, comprising:

• a homozygosity determining section in which whether or not bases comprising polymorphic markers in sample DNA indicating a state of diploidy or polyploidy indicate homozygosity is determined;
• a homozygous region information acquisition section in which from among polymorphic markers as the subject of determination carried out by the homozygosity determining section, polymorphic markers that have been determined as indicating homozygosity acquire homozygous region information showing a sequential sample DNA region;
• and
• a homologous region determining section in which continuous probability and/or continuous distance regarding polymorphic markers included in homozygous region information that will be acquired by the homozygous region information acquisition section satisfy given homologous determination conditions, it is determined that a homozygous region is a homologous region.

A homologous region determining device comprising:

• a polymorphic marker selection section in which polymorphic markers as the subject of determination regarding homozygosity are selected from among polymorphic markers of sample DNA indicating a state of diploidy or polyploidy;
• a homozygosity determining section in which whether the bases making up the polymorphic markers selected by the polymorphic marker selection section indicate homozygosity or not is determined;
• a homozygous region information acquisition section in which from among polymorphic markers as the subject of determination carried out by the homozygosity determining section, polymorphic markers that have been determined as indicating homozygosity acquire homozygous region information showing a sequential sample DNA region;
• and
• a homologous region determining section in which when continuous probability and/or continuous distance regarding polymorphic markers included in homozygous region information that will be acquired by the homozygous region information acquisition section satisfy given homologous determination conditions, it is determined that a homozygous region is a homologous region.