Revisiting L.S. Penrose's foundational sib-pair studies (1935-1953) in light of modern genetic linkage analysis.
Highlighting Penrose's enduring principle that parental typing offers limited value for linkage detection in sib-pair studies.
Discussion:
Advocating for the term "multifactorial disease" over "polygenic" in family analyses, aligning with Penrose's lesser-known work.
Discussing the resurgence of publishing raw data alongside analysis, facilitated by the internet, enabling large-scale data sharing for complex diseases like diabetes.
Key Insights:
Parental typing is inefficient for linkage detection with current genetic markers.
The term "multifactorial disease" is proposed to replace "polygenic" for family studies.
Internet-enabled data sharing is crucial for combining evidence from multiple studies on common disorders.
Outlook:
Encouraging the adoption of Penrose's data-sharing convention for robust familial investigation strategies.
Facilitating meta-analyses of sib-pair data to enhance the identification and validation of disease-associated alleles.
Promoting collaborative research by making Penrose's seminal works accessible online.