Jump to ContentJump to Main Navigation
Specialization, Speciation, and RadiationThe Evolutionary Biology of Herbivorous Insects$
Users without a subscription are not able to see the full content.

Kelley Tilmon

Print publication date: 2008

Print ISBN-13: 9780520251328

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520251328.001.0001

Show Summary Details
Page of

PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2017. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use (for details see http://california.universitypressscholarship.com/page/535/privacy-policy-and-legal-notice).date: 12 December 2017

Introgression and Parapatric Speciation in a Hybrid Zone

Introgression and Parapatric Speciation in a Hybrid Zone

Chapter:
(p.69) Six Introgression and Parapatric Speciation in a Hybrid Zone
Source:
Specialization, Speciation, and Radiation
Author(s):

J. Mark Scriber

Gabe J. Ording

Rodrigo J. Mercader

Publisher:
University of California Press
DOI:10.1525/california/9780520251328.003.0006

Hybridization has been recognized as a potent evolutionary force that rapidly can generate new (novel) gene combinations for adaptive evolution and speciation. However, others have historically viewed it as a minor evolutionary force (barring allopolyploids in plants), or simply as a local or transient type of evolutionary noise or dead end. While definitive proof is generally lacking, especially for animals, diploid hybrid recombinant speciation may represent a mechanism of evolution of new species, especially if it occurs rapidly. The rarity of animal hybrid speciation may be partly due to the difficulty in detection of hybrids (until the use of recent technological tools). This chapter explores introgression and parapatric speciation in a hybrid zone. First, it describes hybrid zones and “evolutionary novelties,” and then discusses isolation, climate warming, thermal constraints, voltinism, diapause, genetics of diapause regulation, and non-concordant steep clines for species-diagnostic allozymes. Finally, the chapter studies the tiger swallowtail butterflies, and the hybrid Papilio populations and species.

Keywords:   Papilio, introgression, hybrid zones, tiger swallowtail butterflies, parapatric speciation, evolutionary novelties, isolation, climate warming, voltinism, allozymes

California Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.