Results 221 to 230 of about 106,656 (261)

Founder effect: assessment of variation in genetic contributions among founders.

Human biology, 1994
We present a Monte Carlo method for determining the distribution of founders' genetic contributions to descendant cohorts. The simulation of genes through known pedigrees generates the probability distributions of contributed genes in recent cohorts of descendants, their means, and their variances. Genealogical data from three populations are analyzed:
E, O'Brien, R A, Kerber, L B, Jorde, A R, Rogers   +3 more
openaire   +1 more source

Population Bottlenecks and Founder Effects

2006
Abstract Patterns of geographic variation arise from the combined effects of migration, selection, mutation, and genetic drift. One measure of the evolutionary potential for such geographic differentiation is the level of additive genetic variance (i.e., the linear resemblance between relatives, hereafter denoted VA; see Roff, Ch.
openaire   +1 more source

The founder effect in a human isolate: Evolutionary implications

American Journal of Physical Anthropology, 1970
AbstractAn investigation of the founder effect has been made on the H‐leut, a religious isolate. Ninety‐one founders, representing a maximum of 150 independent genomes, have been shown to account for the total gene pool of the 9,536 people in two of the three major subpopulations within the isolate, the S‐leut and the L‐leut.
openaire   +2 more sources

The role of founder effects on the evolution of reproductive isolation

Journal of Evolutionary Biology, 2013
AbstractSeveral theories argue that large changes in allele frequencies through genetic drift after a small founding population becomes allopatrically isolated can lead to significant changes in reproductive isolation and thus trigger the origin of new species. For this reason, founder speciation has been proposed as a potent force in the generation of
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Founder Effect

2008
E. S. Krafsur, R. D. Moon, R. Albajes, O. Alomar, Elisabetta Chiappini, John Huber, John L. Capinera, John B. Heppner, John B. Heppner, John B. Heppner, John B. Heppner, Norbert H. Haunerland, George Hangay, Hannah Nadel, Carlos Caceres, Kevin D. Floate, Gary A. P. Gibson, James E. Lloyd, Helen Ghiradella, John T. Schmidt, John B. Heppner, Malcolm Edmunds, Juliana J. Soroka, John B. Heppner, Cyrus Abivardi, Kathryn A. Barbara, John L. Capinera, Stan K. Gangwere, Luca Fornasari, Robert D. Hall, Ashok K. Raina, Marjorie A. Hoy, Marjorie A. Hoy, Whitney Cranshaw, John B. Heppner, George Hangay, George Hangay, George Hangay, Gary J. Steck, Yousif Aldryhim, John B. Heppner, Donald C. Steinkraus, Peter H. Kerr, John B. Heppner, Cyrus Abivardi   +44 more
openaire   +2 more sources

The evolution of founder identity as an authenticity work process

Journal of Business Venturing, 2022
Isobel O'Neil, deniz Ucbasaran, Jeffrey Glenn York   +2 more
exaly  

Are Founder-Led Firms Less Susceptible to Managerial Myopia?

Entrepreneurship Theory and Practice, 2020
Jeffrey G. Covin, Charlotte Schuster
exaly  

Founder team prior work experience: An asset or a liability for startup growth?

Strategic Entrepreneurship Journal, 2022
Shaker Zahra, Niron Hashai
exaly  

Founder CEOs and innovation: Evidence from CEO sudden deaths in public firms

Research Policy, 2020
Joon Mahn Lee
exaly  

Founder CEO, CEO Characteristics, and Firm Innovation Efficiency: An Empirical Study of China’s GEM-Listed Companies

Sustainability, 2022
Huigang Liang
exaly