Hybridization and speciation
Richard J. Abbott,Dirk C. Albach,Stephen W. Ansell,Jan W. Arntzen,Stuart J. E. Baird,Nicolas Bierne,Janette W. Boughman,Alan Brelsford,C. A. Buerkle,Richard J. A. Buggs,Roger K. Butlin,Ulf Dieckmann,Fabrice Eroukhmanoff,Andrea Grill,Sara Helms Cahan,Jo S. Hermansen,Godfrey M. Hewitt,Alan G. Hudson,Chris D. Jiggins,Julia C. Jones,Barbara Keller,T. Marczewski,James Mallet,Paloma Martínez-Rodríguez,Markus Möst,Sean P. Mullen,Richard A. Nichols,Arne W. Nolte,Christian Parisod,Karin S. Pfennig,Amber M. Rice,Michael G. Ritchie,Burkhardt Seifert,Carole M. Smadja,Rike B. Stelkens,Jacek M. Szymura,Risto Väinölä,Jochen B. W. Wolf,Dietmar Zinner +38 more
Reads0
Chats0
TLDR
A perspective on the context and evolutionary significance of hybridization during speciation is offered, highlighting issues of current interest and debate and suggesting that the Dobzhansky–Muller model of hybrid incompatibilities requires a broader interpretation.Abstract:
Hybridization has many and varied impacts on the process of speciation. Hybridization may slow or reverse differentiation by allowing gene flow and recombination. It may accelerate speciation via adaptive introgression or cause near-instantaneous speciation by allopolyploidization. It may have multiple effects at different stages and in different spatial contexts within a single speciation event. We offer a perspective on the context and evolutionary significance of hybridization during speciation, highlighting issues of current interest and debate. In secondary contact zones, it is uncertain if barriers to gene flow will be strengthened or broken down due to recombination and gene flow. Theory and empirical evidence suggest the latter is more likely, except within and around strongly selected genomic regions. Hybridization may contribute to speciation through the formation of new hybrid taxa, whereas introgression of a few loci may promote adaptive divergence and so facilitate speciation. Gene regulatory networks, epigenetic effects and the evolution of selfish genetic material in the genome suggest that the Dobzhansky-Muller model of hybrid incompatibilities requires a broader interpretation. Finally, although the incidence of reinforcement remains uncertain, this and other interactions in areas of sympatry may have knock-on effects on speciation both within and outside regions of hybridization.read more
Citations
More filters
Journal ArticleDOI
A chromosome-based draft sequence of the hexaploid bread wheat (Triticum aestivum) genome
Klaus F. X. Mayer,Jane Rogers,Jaroslav Doležel,Curtis J. Pozniak,Kellye Eversole,Catherine Feuillet,Bikram S. Gill,Bernd Friebe,Adam J. Lukaszewski,Pierre Sourdille,Takashi R. Endo,M. Kubaláková,Jarmila Číhalíková,Zdeňka Dubská,Jan Vrána,Romana Šperková,Hana Šimková,Melanie Febrer,Leah Clissold,Kirsten McLay,Kuldeep Singh,Parveen Chhuneja,Nagendra K. Singh,Jitendra P. Khurana,Eduard Akhunov,Frédéric Choulet,Adriana Alberti,Valérie Barbe,Patrick Wincker,Hiroyuki Kanamori,Fuminori Kobayashi,Takeshi Itoh,Takashi Matsumoto,Hiroaki Sakai,Tsuyoshi Tanaka,Jianzhong Wu,Yasunari Ogihara,Hirokazu Handa,P. Ron Maclachlan,Andrew G. Sharpe,Darrin Klassen,David Edwards,Jacqueline Batley,Odd-Arne Olsen,Simen Rød Sandve,Sigbjørn Lien,Burkhard Steuernagel,Brande B. H. Wulff,Mario Caccamo,Sarah Ayling,Ricardo H. Ramirez-Gonzalez,Bernardo J. Clavijo,Jonathan M. Wright,Matthias Pfeifer,Manuel Spannagl,Mihaela Martis,Martin Mascher,Jarrod Chapman,Jesse Poland,Uwe Scholz,Kerrie Barry,Robbie Waugh,Daniel S. Rokhsar,Gary J. Muehlbauer,Nils Stein,Heidrun Gundlach,Matthias Zytnicki,Véronique Jamilloux,Hadi Quesneville,Thomas Wicker,Primetta Faccioli,Moreno Colaiacovo,Antonio Michele Stanca,Hikmet Budak,Luigi Cattivelli,Natasha Glover,Lise Pingault,Etienne Paux,Sapna Sharma,Rudi Appels,Matthew I. Bellgard,Brett Chapman,Thomas Nussbaumer,Kai Christian Bader,Hélène Rimbert,Shichen Wang,Ron Knox,Andrzej Kilian,Michael Alaux,Françoise Alfama,Loïc Couderc,Nicolas Guilhot,Claire Viseux,Mikaël Loaec,Beat Keller,Sébastien Praud +95 more
TL;DR: Insight into the genome biology of a polyploid crop provide a springboard for faster gene isolation, rapid genetic marker development, and precise breeding to meet the needs of increasing food demand worldwide.
Journal ArticleDOI
Genomics and the origin of species
Ole Seehausen,Roger K. Butlin,Irene Keller,Catherine E. Wagner,Janette W. Boughman,Paul A. Hohenlohe,Catherine L. Peichel,Glenn-Peter Sætre,Claudia Bank,Åke Brännström,Alan Brelsford,Chris S Clarkson,Fabrice Eroukhmanoff,Jeffrey L. Feder,Martin C. Fischer,Andrew D. Foote,Paolo Franchini,Chris D. Jiggins,Felicity C. Jones,Anna K. Lindholm,Kay Lucek,Martine E. Maan,David Alexander Marques,Simon H. Martin,Blake Matthews,Joana I. Meier,Markus Möst,Michael W. Nachman,Etsuko Nonaka,Diana J. Rennison,Julia Schwarzer,E. Watson,Anja M. Westram,Alex Widmer +33 more
TL;DR: Emergent trends and gaps in understanding are identified, new approaches to more fully integrate genomics into speciation research are proposed, and an integrative definition of the field of speciation genomics is provided.
Journal ArticleDOI
Ancient hybridizations among the ancestral genomes of bread wheat
Thomas Marcussen,Simen Rød Sandve,Lise Heier,Manuel Spannagl,Matthias Pfeifer,Kjetill S. Jakobsen,Brande B. H. Wulff,Burkhard Steuernagel,Klaus F. X. Mayer,Odd-Arne Olsen +9 more
TL;DR: It is implied that the present-day bread wheat genome is a product of multiple rounds of hybrid speciation (homoploid and polyploid) and lay the foundation for a new framework for understanding the wheat genome as a multilevel phylogenetic mosaic.
Journal ArticleDOI
Adaptive introgression in animals: examples and comparison to new mutation and standing variation as sources of adaptive variation.
TL;DR: The various attributes of these three potential sources of adaptive variation are compared, including balancing selection for multiple alleles for major histocompatibility complex (MHC), S and csd genes, pesticide resistance in mice, black colour in wolves and white colour in coyotes, Neanderthal or Denisovan ancestry in humans, and mimicry genes in Heliconius butterflies are examined.
References
More filters
Journal ArticleDOI
The evolutionary fate and consequences of duplicate genes
Michael Lynch,John S. Conery +1 more
TL;DR: Although duplicate genes may only rarely evolve new functions, the stochastic silencing of such genes may play a significant role in the passive origin of new species.
Journal ArticleDOI
Some genetic consequences of ice ages, and their role in divergence and speciation
TL;DR: The genetic effects of pleistocene ice ages are approached by deduction from paleoenvironmental information, by induction from the genetic structure of populations and species, and by their combination to infer likely consequences.
Journal ArticleDOI
Analysis of Hybrid Zones
TL;DR: Hybrid zones are narrow regions in which genetically distinct populations meet, mate, and produce hybrids, and models of parapatric speciation, and of Wright's "shifting balance," involve the formation, move ment, and modification of hybrid zones.
Book
Geographic variation, speciation, and clines
TL;DR: Professor Endler shows how geographic differentiation and speciation may develop in spite of continuous gene flow, and considers the interpretation of natural clines and the associated geographic patterns of subspecies and species.