University of California, Irvine
Ecology and Evolutionary Biology

 
 

Mail to:
Ecology and Evolution
321 Steinhaus Hall
University of California
Irvine,CA 92697 USA
949 824-6006
949 824-2181 (fax)

 

 

Francisco J. Ayala

Donald Bren Professor of Biological Sciences

Evolutionary genetics; philosophy of biology


Email: fjayala@uci.edu

Research Interests

The concept of the molecular clock has revolutionized evolutionary studies. DNA and protein sequences thus can be used for reconstructing evolutionary history and timing events of the past. How good is the clock? We are investigating a number of genes and testing new models of rates of gene evolution.

Another major research effort focuses on the population structure and evolution of parasitic protozoa, such as malaria and Chagas’. We have shown that the four species of Plasmodium that cause human malaria diverged many million years ago; they became human parasites independently, by lateral transfer from other hosts. However, the world populations of P. falciparum, the agent of malignant malaria, originated from a single individual only a few thousand years ago. We have shown that P. falciparum parasites are genetically virtually identical, except for the genes responding to the human immune system or to antimalarial drugs.

A third area of investigation is the evolution of molecular adaptation. The main lines of research are: the evolution of gene regulatory regions, the molecular adaptation of duplicated genes, the evolution of pseudogenes, and the origin and evolution of introns.

Additionally, I am interested in the philosophy of biology and in bioethics, as well as in the relationships between science and religion, including the teaching of evolution in the schools.

 

Degrees

B.S., University of Madrid, Spain, 1955
M.A., Columbia University, New York, 1963
Ph.D., Columbia University, New York, 1964

 

Honors and Awards

2003 Gold Medal, Stazione Zoologica Naples (Italy)
2001 U.S. National Medal of Science
2000 Gold Medal of the National Academy of Sciences of Italy
2000 William Procter Prize for Scientific Achievement from Sigma Xi
1998 Distinguished Scientist Award from SACNAS
1995 President's Award of the American Institute of Biological Sciences
1995 UCI Medal, University of California
1994 Gold Honorary Gregor Mendel Medal, Czech Academy of Sciences
1979 Medal of the College of France
Doctor Honoris Causa: Universities of Athens (Greece); Bologna (Italy); Barcelona, Islas Baleares, Leon, Madrid, Valencia, and Vigo (Spain); Vladivostok (“Far East National University”), Russia; and Masaryk University (Brno, Czech Republic)
Elected Member: U.S. National Academy of Sciences; American Academy of Arts and Sciences; American Philosophical Society
Foreign Member: Russian Academy of Sciences; Royal Academy of Sciences of Spain; Accademia Nazionale dei Lincei (Rome); Mexican Academy of Sciences
2003-2006 President Elect, President, and Past President, Sigma Xi, “The Scientific Research Society.”

 

Current Graduate Students

None

Current Post-docs

Evgeniy Balakirev, Ph.D., Head, Genetics Lab, Far Eastern State University, Vladivostok, Russia
Chaeseung Lim, M.D., Ph.D., Associate Professor, College of Medicine, Korea University, Seoul, Korea
Francisco Rodriguez-Trelles, Ph.D., Research Scientist, University of Santiago de Compostela, Spain
Rosa Tarrio, Ph.D., Research Scientist, University of Santiago de Compostela, Spain
Loubna Tazi, Ph.D., Postdoctoral Researcher, Institut de Recherche pour le Développement, Montpelier, France
Martina Zurovcova, Ph.D., Research Scientist, University of South Bohemia, Czech Republic

 

Recent Courses Taught

Bio 94, Introduction to the Diversity of Life, Winter 1999
Bio 142W, Philosophy of Biology, Winter 2000, 2001, 2002, 2003
Bio 206, Survey of Evolutionary Biology, Winter 2001, 2002
Human Evolution Freshman Seminar, Spring 2003

 

Links

UCI Faculty Profile

Recent Papers

Balakirev, E.S. and F.J. Ayala. 2003. Pseudogenes: Are They “Junk” or Functional DNA? Annu. Rev. Genet. 37:123-151.

M.J. Benton and F.J. Ayala. 2003. Dating the Tree of Life. Science 300:1698-1700.

C.J. Cela-Conde and F.J. Ayala. 2003. Genera of the human lineage. PNAS 100:7684-7689. (Table 1 reprinted in PNAS 100:1033, 2003.)

Tarrio, R., F. Rodriguez-Trelles, and F.J. Ayala. 2003. A new Drosophila spliceosomal intron position is common in plants. PNAS 100:6580-6583.

Ayala, F.J. 2003. Intelligent Design: The Original Version. Theology and Science 1:9-32.

Sáez, A.G., A. Tatarenkov, E. Barrio, N.H. Becerra, and F.J. Ayala. 2003. Patterns of DNA sequence polymorphism at Sod vicinities in Drosophila melanogaster: Unraveling the footprint of a recent selective sweep. PNAS 100:1793-1798.

Žurovcová, M. and F.J. Ayala. 2002. Polymorphism Patterns in Two Tightly Linked Developmental Genes, Idgf1 and Idgf3, of Drosophila melanogaster. Genetics 162:177-188.

Tibayrenc, M. and F.J. Ayala. 2002. The clonal theory of parasitic protozoa: 12 years on. TRENDS in Parasitology 18:405-410.

Rodriguez-Trelles, F., R. Tarrio, and F.J. Ayala. 2002. A methodological bias toward overestimation of molecular evolutionary time scales. PNAS 99:8112-8115.

Machado, C.A. and F.J. Ayala. 2002. Sequence variation in the dihydrofolate reductase-thymidylate synthase (DHFR-TS) and trypanothione reductase (TR) genes of Trypanosoma cruzi. Molecular & Biochemical Parasitology 121:33-47.

Rodriguez-Trelles, F., R. Tarrio, and F.J. Ayala. 2001. Erratic overdispersion of three molecular clocks: GPDH, SOD, and XDH. PNAS 98:11405-11410.

 

Last modified: July 2, 2005