- THIS ARTICLE
- Full Text
- Full Text (PDF)
-
All Versions of this Article:
genetics.105.048645v1
172/1/499 most recent - Alert me when this article is cited
- Alert me if a correction is posted
- SERVICES
- Email this article to a friend
- Similar articles in this journal
- Similar articles in PubMed
- Alert me to new issues of the journal
- Download to citation manager
- Reprints & Permissions
- CITING ARTICLES
- Citing Articles via HighWire
- Citing Articles via Google Scholar
- GOOGLE SCHOLAR
- Articles by Kermicle, J. L.
- Search for Related Content
- PUBMED
- PubMed Citation
- Articles by Kermicle, J. L.
Originally published as Genetics Published Articles Ahead of Print on September 12, 2005.
Genetics, Vol. 172, 499-506, January 2006, Copyright © 2006
doi:10.1534/genetics.105.048645
A Selfish Gene Governing Pollen-Pistil Compatibility Confers Reproductive Isolation Between Maize Relatives
Jerry L. Kermicle1
Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706
1 Address for correspondence: Laboratory of Genetics, 425-G Henry Mall, University of Wisconsin, Madison, WI 53706.
E-mail: kermicle{at}wisc.edu
Some populations of maize's closest relatives, the annual teosintes of Mexico, are unreceptive to maize pollen. When present in the pistil (silk and ovary) a number of maize genes discriminate against or exclude pollen not carrying the same allele. An analogous gene Tcb1-s was found in some teosinte populations but not in sympatric or parapatric maize. It was polymorphic among populations of teosinte growing wild, but regularly present in populations growing in intimate association with maize as a weed. Introduction of Tcb1-s into maize substantially to fully restored compatibility with Tcb1-s carrying teosintes. Although Tcb1-s pollen can fertilize tcb1 tcb1 maize, it is at a competitive disadvantage relative to tcb1 pollen. Hence, the influence of Tcb1-s on crossability is bidirectional. In the absence of maize, Tcb1-s can increase in teosinte populations without improving their fitness. In the presence of maize, Tcb1-s appears to have been co-opted to provide reproductive isolation for adaptation to a cultivated habitat.
This article has been cited by other articles:
 |
|
 |
|
  Y. Koide, M. Ikenaga, N. Sawamura, D. Nishimoto, K. Matsubara, K. Onishi, A. Kanazawa, and Y. Sano The Evolution of Sex-Independent Transmission Ratio Distortion Involving Multiple Allelic Interactions at a Single Locus in Rice Genetics, September 1, 2008; 180(1): 409 - 420. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. A. Ruiz Corral, N. Duran Puga, J. d. J. Sanchez Gonzalez, J. Ron Parra, D. R. Gonzalez Eguiarte, J.B. Holland, and G. Medina Garcia Climatic Adaptation and Ecological Descriptors of 42 Mexican Maize Races Crop Sci., July 1, 2008; 48(4): 1502 - 1512. [Abstract] [Full Text] [PDF]
|
|