Image-based morphometric analysis reveals moderate to highly heritable nut shape traits in pecan

Abg 401 Heritable and Non-heritable Traits

Three-dimensional geometric morphometric analysis reveals ethnic dimorphism in the shape of the femur

BACKGROUND Ethnic dimorphism in the distal femur has never been studied in a three-dimensional analysis focused on shape instead of size. Yet, this dimorphism has direct implications in orthopedic surgery and in anthropology. The goal of this study was to show that differences in distal femur shape related to ethnic dimorphism could be identified, visualized, and quantified using 3D geometric m...

Quadratic Optimization to Identify Highly Heritable Quantitative Traits from Complex Disease Features

Identifying genetic variation underlying a complex disease is important. Many complex diseases have heterogeneous phenotypes and are products of a variety of genetic and environmental factors acting in concert. Deriving highly heritable quantitative traits of a complex disease can improve the identification of genetic risk of the disease. The most sophisticated methods so far perform unsupervis...

Weighted Morphometric Shape Analysis of Diatoms

In this paper we present an approach for diatom classification on the basis of contour information. First an initial feature set is analysed. Then we present a method to reduce this initial feature space while preserving its discriminative power. Both results based on the initial feature space and the reduced one are compared and the classification method is discussed.

Morphometric Shape Analysis with Measurement Covariance Estimates

We propose a shape analysis system based upon the description of landmarks with measurement covariance, which extends statistical linear modelling processes to ‘pseudo landmarks’ for scientific studies. We discuss the properties of our approach and how measurement covariances can be considered characteristic of the local shape. Our formulation includes corrections for parameter bias, induced by...