Daniel L. Hartl (born 1943) is the Higgins Professor of Biology in the Department of Organismic and Evolutionary Biology at Harvard University. He is also a principal investigator at the Hartl Laboratory at Harvard University. His research interests are focused on evolutionary genomics, molecular evolution, and population genetics. [1]
Hartl was born in 1943 and spent his childhood in Antigo, Wisconsin. He has three brothers and grew up with foster children living in his home. Hartl's father worked in a cheese factory and his mother worked nights as a sous chef. [2]
Hartl was not exposed to the study of genetics in high school, and he was not sure he would go to college. His high school teacher, Robert Meyer, encouraged Hartl to apply for a scholarship, which allowed him to attend University of Wisconsin–Marathon County in Wausau, Wisconsin for two years. [3] He had just enough money for tuition, and his brothers bought him a car so he could commute the 35 miles to school. [2] He then transferred to the main campus of the University of Wisconsin in Madison, whose genetics programs were among the best in the world. There he had the opportunity to study with acclaimed geneticists, such as James Crow. He remained at the University of Wisconsin, Madison to earn his PhD in genetics. [1] [3] Hartl studied Drosophila (a group of fruit flies) and investigated "the mystery of segregation distortion." [2]
In 1968 he began postdoctoral work at the University of California in Berkeley, where he worked with geneticist Spencer Brown. [3]
Beginning in 1969 Hartl had faculty positions at the University of Minnesota, Purdue University, Washington University in St. Louis, and Harvard University. [1] He has been at Harvard since 1993. [3] Hartl is the Higgins Professor of Biology in the Department of Organismic and Evolutionary Biology at Harvard University. [3]
Hartl began his career studying genetics of segregation distortion in Drosophila [2] . He has published work on population genetic theory, tests of selection, [4] evolution of antimicrobial resistance in E. coli [5] and malaria. [6] His lab identified the Mariner transposon. [7] As of 2017 research at the Hartl Laboratory at Harvard University focused on evolutionary genomics, molecular evolution, and population genetics. [8] Hartl's ongoing research includes malaria research, which his connected to his work on antibiotic resistance. [3]
Hartl is the author of a widely used textbook on population genetics [9] and an introductory text on genetics. [10]
Hartl is the 2019 recipient of the Thomas Hunt Morgan Medal from the Genetics Society of America (GSA). The award recognizes a lifetime of achievement in genetics research. [3]
He was elected President of the Genetics Society of America for 1989. [11] He is an elected fellow of the National Academy of Sciences and the American Academy of Arts and Sciences. [3]
Molecular evolution describes how inherited DNA and/or RNA change over evolutionary time, and the consequences of this for proteins and other components of cells and organisms. Molecular evolution is the basis of phylogenetic approaches to describing the tree of life. Molecular evolution overlaps with population genetics, especially on shorter timescales. Topics in molecular evolution include the origins of new genes, the genetic nature of complex traits, the genetic basis of adaptation and speciation, the evolution of development, and patterns and processes underlying genomic changes during evolution.
Population genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
Allopatric speciation – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow.
Richard Charles Lewontin was an American evolutionary biologist, mathematician, geneticist, and social commentator. A leader in developing the mathematical basis of population genetics and evolutionary theory, he applied techniques from molecular biology, such as gel electrophoresis, to questions of genetic variation and evolution.
Evolutionary biology is the subfield of biology that studies the evolutionary processes that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth. Evolution holds that all species are related and gradually change over generations. In a population, the genetic variations affect the phenotypes of an organism. These changes in the phenotypes will be an advantage to some organisms, which will then be passed on to their offspring. Some examples of evolution in species over many generations are the peppered moth and flightless birds. In the 1930s, the discipline of evolutionary biology emerged through what Julian Huxley called the modern synthesis of understanding, from previously unrelated fields of biological research, such as genetics and ecology, systematics, and paleontology.
Ecological genetics is the study of genetics in natural populations. It combines ecology, evolution, and genetics to understand the processes behind adaptation. It is virtually synonymous with the field of molecular ecology.
Genetics and the Origin of Species is a 1937 book by the Ukrainian-American evolutionary biologist Theodosius Dobzhansky. It is regarded as one of the most important works of modern synthesis and was one of the earliest. The book popularized the work of population genetics to other biologists and influenced their appreciation for the genetic basis of evolution. In his book, Dobzhansky applied the theoretical work of Sewall Wright (1889–1988) to the study of natural populations, allowing him to address evolutionary problems in a novel way during his time. Dobzhansky implements theories of mutation, natural selection, and speciation throughout his book to explain the habits of populations and the resulting effects on their genetic behavior. The book explains evolution in depth as a process over time that accounts for the diversity of all life on Earth. The study of evolution was present, but greatly neglected at the time. Dobzhansky illustrates that evolution regarding the origin and nature of species during this time in history was deemed mysterious, but had expanding potential for progress to be made in its field.
Brian Charlesworth is a British evolutionary biologist at the University of Edinburgh, and editor of Biology Letters. Since 1997, he has been Royal Society Research Professor at the Institute of Evolutionary Biology (IEB) in Edinburgh. He has been married since 1967 to the British evolutionary biologist Deborah Charlesworth.
James Franklin Crow was Professor Emeritus of Genetics at the University of Wisconsin–Madison and a prominent population geneticist whose career spanned from the modern synthesis to the genomic era.
Masatoshi Nei was a Japanese-born American evolutionary biologist.
Martin Edward Kreitman is an American geneticist at the University of Chicago, most well known for the McDonald–Kreitman test that is used to infer the amount of adaptive evolution in population genetic studies.
Montgomery Wilson Slatkin is an American biologist, and professor at University of California, Berkeley.
Norbert Perrimon is a French geneticist and developmental biologist. He is the James Stillman Professor of Developmental Biology in the Department of Genetics at Harvard Medical School, an Investigator at the Howard Hughes Medical Institute, and an Associate of the Broad Institute. He is known for developing a number of techniques for used in genetic research with Drosophila melanogaster, as well as specific substantive contributions to signal transduction, developmental biology and physiology.
Peter D. Keightley is a British geneticist who is Professor of Evolutionary Genetics at the Institute of Evolutionary Biology in School of Biological Sciences at the University of Edinburgh.
Paul Martin Sharp is a British bioinformatician who is a professor of genetics at the University of Edinburgh, where he holds the Alan Robertson chair of genetics in the Institute of Evolutionary Biology.
Laboratory experiments of speciation have been conducted for all four modes of speciation: allopatric, peripatric, parapatric, and sympatric; and various other processes involving speciation: hybridization, reinforcement, founder effects, among others. Most of the experiments have been done on flies, in particular Drosophila fruit flies. However, more recent studies have tested yeasts, fungi, and even viruses.
Seminal fluid proteins (SFPs) or accessory gland proteins (Acps) are one of the non-sperm components of semen. In many animals with internal fertilization, males transfer a complex cocktail of proteins in their semen to females during copulation. These seminal fluid proteins often have diverse, potent effects on female post-mating phenotypes. SFPs are produced by the male accessory glands.
Mark A. Kirkpatrick is a theoretical population geneticist and evolutionary biologist. He currently holds the T. S. Painter Centennial Professorship in Genetics in the Department of Integrative Biology at the University of Texas at Austin. His research touches on a wide variety of topics, including the evolution of sex chromosomes, sexual selection, and speciation. Kirkpatrick is the co-author, along with Douglas J. Futuyma, of a popular undergraduate evolution textbook. He is a member of the United States National Academy of Sciences.
Jeffrey P. Townsend is an American biostatistician and evolutionary biologist. He is currently the Elihu Professor of Biostatistics and Professor of Ecology and Evolutionary Biology at the Yale School of Public Health at Yale University.
C. Brandon Ogbunu(gafor) is an American computational biologist who is an Assistant Professor of Ecology and Evolutionary Biology at Yale University, and an External Professor at the Santa Fe Institute. He uses experimental and computational tools to understand the causes of disease, ranging from molecular underpinnings to the social determinants of public health. In addition, he runs a parallel research program at the intersection between science and culture, where he explores the social forces that craft science, and how sciences influences society.
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