M. Arnold

Publications164
h-index54
Citations11,350
Highly Influential Citations669
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Natural Hybridization and Evolution
  • M. Arnold
  • Biology, Materials Science
  • 30 January 1997
TLDR
This chapter discusses natural hybridization in the context of reproductive parameters, species concepts, and the role that technology has played in shaping human evolution.
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Genetics and the fitness of hybrids.
TLDR
The available evidence argues that hybrid inferiority is the result of widespread negative epistasis in a hybrid genetic background, and increased hybrid fitness can be most readily explained through the segregation of additive genetic factors, with epistasis playing a more limited role.
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Evolution through Genetic Exchange
TLDR
This paper aims to provide a history of investigations and a test case for the theory that barriers to Gene Flow and Gene Duplication in humans and Associated Lineages are connected.
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Are natural hybrids fit or unfit relative to their parents?
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Natural Hybridization as an Evolutionary Process
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…
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IRIS NELSONII (IRIDACEAE): ORIGIN AND GENETIC COMPOSITION OF A HOMOPLOID HYBRID SPECIES.
  • M. Arnold
  • Biology
    American journal of botany
  • 1 May 1993
TLDR
Nuclear and chloroplast DNA variation was assayed for two populations of Louisiana irises that demonstrated extreme morphological variation and for a sample of the putative hybrid species, Iris nelsonii, demonstrating that the two morphologically variable populations were hybrid associations involving all three of these species and that all three species were involved in the origin of I. n Nelsonii.
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Pollen-mediated introgression and hybrid speciation in Louisiana irises.
TLDR
Individuals analyzed from a contemporary hybrid population demonstrate multilocus genotypes that are indicative of advanced-generation hybrid individuals that demonstrate the power of the polymerase chain reaction methodology for the rapid identification of random and specific genetic markers for testing evolutionary genetic hypotheses.
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Reinforcement: the road not taken
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NATURAL HYBRIDIZATION: HOW LOW CAN YOU GO AND STILL BE IMPORTANT?
TLDR
This paper examines two assumptions that have formed the basis for much of the past and present work on hybrid zones and demonstrates that various hybrid genotypes have equivalent or higher fitness than their parents in certain habitats.
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Transfer and Origin of Adaptations through Natural Hybridization: Were Anderson and Stebbins Right?
  • M. Arnold
  • Biology
    The Plant Cell Online
  • 1 March 2004
The biographer Ronald Clark once described the influential evolutionary mathematician J.B.S. Haldane as “…among the last of the ‘string-and-sealing-wax' scientists, the men who could achieve results…
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