Assessing Kinship Detection: Single Nucleotide Polymorphism Array Density and Estimator Comparison in White-Tailed
Alec J Christensen1, Emily K Latch2, Michelle Carstensen3
1School of Natural Resources, North Dakota State University, Fargo, ND 58102, USA.
G3 (Bethesda, Md.)
|January 25, 2026
まとめ
Medium-density SNP arrays offer a cost-effective balance for wildlife genetic studies. Using filtered SNPs with specific software provides accurate relatedness analysis in white-tailed deer populations.
科学分野:
- ゲノミクス
- 野生生物生物学
- 集団遺伝学
背景:
- 一塩基多型(SNP)アレイは、コスト効率、市販の入手可能性、信頼性から、遺伝学研究でますます利用されています。
- 多様な種にわたるSNPアレイの開発は、野生生物における近縁度分析などの特定のアプリケーションにおけるパフォーマンスの評価を必要とします。
研究 の 目的:
- ホワイトテールジカ(Odocoileus virginianus)における近縁個体の同定のための、中密度および高密度SNPアレイの有効性を評価すること。
- 近縁度分析におけるSNPフィルタリング閾値の影響を調査すること。
- 4つの一般的な近縁度ソフトウェアパッケージ(KING、COLONY、Sequoia、COANCESTRY)のパフォーマンスを比較すること。
主な方法:
- 中密度(72,732 SNP)および高密度(702,183 SNP)SNPアレイの評価。
- 既知の近縁ペアを使用した野生のホワイトテールジカ個体群における遺伝的近縁度の分析。
- SNPフィルタリングの影響の評価と比較近縁度ソフトウェアのパフォーマンス。
主要な成果:
- 中密度SNPアレイは、フィルタリングに対する許容度が高く、バイオインフォマティクスパイプラインに対する感度が低いことが示されました。
- 欠損データのない600遺伝子座のサブセットとSequoia近縁度推定量を組み合わせることで最適な結果が得られました。
- Sequoiaは、ライフヒストリーデータを組み込むことで、計算効率が高く正確な近縁度推定を提供しました。
結論:
- 中密度SNPアレイは、コスト、計算負荷、統計的検出力のバランスを取りながら、野生生物集団研究の実用的な選択肢となります。
- 正確な野生生物の遺伝的洞察を得るためには、慎重なSNPフィルタリングと適切な近縁度分析ツールの選択が不可欠です。
- 本研究の結果は、効果的な野生生物の遺伝的近縁度研究のためのSNPアレイ密度、フィルタリング戦略、およびソフトウェアの選択に関するガイダンスを提供します。
関連する概念動画
Single Nucleotide Polymorphisms-SNPs
18.0K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
18.0K
Nucleotide Excision Repair
40.6K
Overview
40.6K
Nucleotide Excision Repair
5.1K
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
5.1K
The Sense of Self: Reflected Self-Appraisal and Social Comparison
55.6K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
55.6K
What are Estimates?
8.2K
It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates.
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
8.2K
Nucleic Acids and Nucleotides
14.0K
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and have instructions for its functioning. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Deoxyribonucleic Acid (DNA)
DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and the organelles such as chloroplasts and mitochondria....
Deoxyribonucleic Acid (DNA)
DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and the organelles such as chloroplasts and mitochondria....
14.0K


