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- Publications
- Influence
Natural Hybridization and Evolution
- M. Arnold
- Biology
- 30 January 1997
Chapter 1 Natural Hybridization: Definitions and History Chapter 2 Natural Hybridization and Species Concepts Chapter 3 Natural Hybridization: Frequency Chapter 4 Reproductive Parameters and Natural… Expand
Genetics and the fitness of hybrids.
Over the years, the evolutionary importance of natural hybridization has been a contentious issue. At one extreme is the relatively common view of hybridization as an evolutionarily unimportant… Expand
A Look at the Condition of Rural Education Research: Setting a Direction for Future Research
- M. Arnold, J. H. Newman, B. Gaddy, C. Dean
- Political Science
- 1 April 2005
This document has been funded at least in part with federal funds from the U.S. Department of Education under contract number ED-01-CO-0006. The content of this publication does not necessarily… Expand
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Evolution through Genetic Exchange
- M. Arnold
- Biology
- 5 October 2006
Preface 1. History of Investigations 2. The Role of Species Concepts 3. Testing the Hypothesis 4. Barriers to Gene Flow 5. Hybrid Fitness 6. Gene Duplication 7. Origin of New Evolutionary Lineages 8.… Expand
Natural Hybridization as an Evolutionary Process
- M. Arnold
- Biology
- 1992
Studies of natural hybridization have generally addressed evolutionary questions using one of the three following frameworks: (i) taxonomy or systematics (57, 59, 73, 79, 111, 172); (ii) mechanisms… Expand
Are natural hybrids fit or unfit relative to their parents?
- M. Arnold, S. A. Hodges
- Biology, Medicine
- Trends in ecology & evolution
- 1 February 1995
The process of natural hybridization may produce genotypes that establish new evolutionary lineages. However, many authors have concluded that natural hybridization is of little evolutionary… Expand
Pollen-mediated introgression and hybrid speciation in Louisiana irises.
- M. Arnold, C. M. Buckner, J. Robinson
- Biology, Medicine
- Proceedings of the National Academy of Sciences…
- 15 February 1991
Populations of the "Louisiana iris" species Iris fulva, I. hexagona, and I. nelsonii were examined genetically to test for interspecific gene flow between I. fulva and I. hexagona, for pollen- versus… Expand
IRIS NELSONII (IRIDACEAE): ORIGIN AND GENETIC COMPOSITION OF A HOMOPLOID HYBRID SPECIES.
- M. Arnold
- Biology, Medicine
- American journal of botany
- 1 May 1993
Nuclear and chloroplast DNA variation was assayed for two populations of Louisiana irises (Bayou Teche and Young's Coulee) that demonstrated extreme morphological variation and for a sample of the… Expand
Reinforcement: the road not taken
- J. Marshall, M. Arnold, D. J. Howard
- Biology
- 1 December 2002
Reinforcement, a process whereby natural selection strengthens prezygotic isolation between sympatric taxa, has gained increasing attention from evolutionary biologists over the past decade. This… Expand
Understanding and confronting species uncertainty in biology and conservation
- J. Hey, R. Waples, M. Arnold, R. Butlin, R. Harrison
- Biology
- 1 November 2003
Recent essays on the species problem have emphasized the commonality that many species concepts have with basic evolutionary theory. Although true, such consensus fails to address the nature of the… Expand