Molecular Mapping of Segregation Distortion Loci in Aegilops tauschii

Molecular Mapping of Segregation Distortion Loci in Aegilops tauschii

J. D. Faris^a, B. Laddomada^a,b, and B. S. Gill^a
^a Wheat Genetics Resource Center and Department of Plant Pathology, Kansas State University, Manhattan, Kansas 66506
^b Institute of Plant Breeding, University of Bari, 70126, Bari, Italy

Corresponding author: B. S. Gill, Wheat Genetics Resource Center, Department of Plant Pathology, 4307 Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS 66506, bsg{at}ksu.edu (E-mail).

Communicating editor: J. A. BIRCHLER

Distorted segregation ratios of genetic markers are often observedin progeny of inter- and intraspecific hybrids and may resultfrom competition among gametes or from abortion of the gameteor zygote. In this study, 194 markers mapped in an Aegilopstauschii F₂ population were surveyed for distorted segregationratios. Region(s) with skewed segregation ratios were detectedon chromosomes 1D, 3D, 4D, and 7D. These distorter loci aredesignated as QSd.ksu-1D, QSd.ksu-3D, QSd.ksu-4D, and QSd.ksu-7D.Three regions of segregation distortion identified on chromosome5D were analyzed in two sets of reciprocal backcross populationsto analyze the effect of sex and cytoplasm on segregation distortion.Extreme distortion of marker segregation ratios was observedin populations in which the F₁ was used as the male parent,and ratios were skewed in favor of TA1691 alleles. There wassome evidence of differential transmission caused by nucleo-cytoplasmicinteractions. Our results agree with other studies stating thatloci affecting gametophyte competition in male gametes are locatedon 5DL. The distorter loci on 5DL are designated as QSd.ksu-5D.1,QSd.ksu-5D.2, and QSd.ksu-5D.3.

This article has been cited by other articles:

C. Chen, Q. Yu, S. Hou, Y. Li, M. Eustice, R. L. Skelton, O. Veatch, R. E. Herdes, L. Diebold, J. Saw, et al.
Construction of a Sequence-Tagged High-Density Genetic Map of Papaya for Comparative Structural and Evolutionary Genomics in Brassicales
Genetics, December 1, 2007; 177(4): 2481 - 2491.
[Abstract] [Full Text] [PDF]

D. Zhong, D. M. Menge, E. A. Temu, H. Chen, and G. Yan
Amplified Fragment Length Polymorphism Mapping of Quantitative Trait Loci for Malaria Parasite Susceptibility in the Yellow Fever Mosquito Aedes aegypti
Genetics, July 1, 2006; 173(3): 1337 - 1345.
[Abstract] [Full Text] [PDF]

J. J. Zou, R. J. Singh, J. Lee, S. J. Xu, and T. Hymowitz
SSR Markers Exhibit Trisomic Segregation Distortion in Soybean
Crop Sci., May 18, 2006; 46(4): 1456 - 1461.
[Abstract] [Full Text] [PDF]

J. Zhang, J. M. Stewart, and T. Wang
Linkage Analysis between Gametophytic Restorer Rf2 Gene and Genetic Markers in Cotton
Crop Sci., January 1, 2005; 45(1): 147 - 156.
[Abstract] [Full Text] [PDF]

D. Zhong, A. Pai, and G. Yan
AFLP-Based Genetic Linkage Map for the Red Flour Beetle (Tribolium castaneum)
J. Hered., January 1, 2004; 95(1): 53 - 61.
[Abstract] [Full Text] [PDF]

Z. Liu, A. Karsi, P. Li, D. Cao, and R. Dunham
An AFLP-Based Genetic Linkage Map of Channel Catfish (Ictalurus punctatus) Constructed by Using an Interspecific Hybrid Resource Family
Genetics, October 1, 2003; 165(2): 687 - 694.
[Abstract] [Full Text] [PDF]

M. R. Knox and T. H. N. Ellis
Excess Heterozygosity Contributes to Genetic Map Expansion in Pea Recombinant Inbred Populations
Genetics, October 1, 2002; 162(2): 861 - 873.
[Abstract] [Full Text] [PDF]

L. Fishman, A. J. Kelly, E. Morgan, and J. H. Willis
A Genetic Map in the Mimulus guttatus Species Complex Reveals Transmission Ratio Distortion due to Heterospecific Interactions
Genetics, December 1, 2001; 159(4): 1701 - 1716.
[Abstract] [Full Text] [PDF]

Y.-D. Tan, C. Wan, Y. Zhu, C. Lu, Z. Xiang, and H.-W. Deng
An Amplified Fragment Length Polymorphism Map of the Silkworm
Genetics, March 1, 2001; 157(3): 1277 - 1284.
[Abstract] [Full Text]

J. Peng, A. B. Korol, T. Fahima, M. S. Röder, Y. I. Ronin, Y. C. Li, and E. Nevo
Molecular Genetic Maps in Wild Emmer Wheat, Triticum dicoccoides: Genome-Wide Coverage, Massive Negative Interference, and Putative Quasi-Linkage
Genome Res., October 1, 2000; 10(10): 1509 - 1531.
[Abstract] [Full Text]

J. D. Faris, K. M. Haen, and B. S. Gill
Saturation Mapping of a Gene-Rich Recombination Hot Spot Region in Wheat
Genetics, February 1, 2000; 154(2): 823 - 835.
[Abstract] [Full Text]

R. T. Chetelat, V. Meglic, and P. Cisneros
A Genetic Map of Tomato Based on BC1 Lycopersicon esculentum Solanum lycopersicoides Reveals Overall Synteny but Suppressed Recombination Between These Homeologous Genomes
Genetics, February 1, 2000; 154(2): 857 - 867.
[Abstract] [Full Text]

				D. Zhong, D. M. Menge, E. A. Temu, H. Chen, and G. Yan Amplified Fragment Length Polymorphism Mapping of Quantitative Trait Loci for Malaria Parasite Susceptibility in the Yellow Fever Mosquito Aedes aegypti Genetics, July 1, 2006; 173(3): 1337 - 1345. [Abstract] [Full Text] [PDF]

				J. J. Zou, R. J. Singh, J. Lee, S. J. Xu, and T. Hymowitz SSR Markers Exhibit Trisomic Segregation Distortion in Soybean Crop Sci., May 18, 2006; 46(4): 1456 - 1461. [Abstract] [Full Text] [PDF]

				J. Zhang, J. M. Stewart, and T. Wang Linkage Analysis between Gametophytic Restorer Rf2 Gene and Genetic Markers in Cotton Crop Sci., January 1, 2005; 45(1): 147 - 156. [Abstract] [Full Text] [PDF]

				D. Zhong, A. Pai, and G. Yan AFLP-Based Genetic Linkage Map for the Red Flour Beetle (Tribolium castaneum) J. Hered., January 1, 2004; 95(1): 53 - 61. [Abstract] [Full Text] [PDF]

				Z. Liu, A. Karsi, P. Li, D. Cao, and R. Dunham An AFLP-Based Genetic Linkage Map of Channel Catfish (Ictalurus punctatus) Constructed by Using an Interspecific Hybrid Resource Family Genetics, October 1, 2003; 165(2): 687 - 694. [Abstract] [Full Text] [PDF]

				M. R. Knox and T. H. N. Ellis Excess Heterozygosity Contributes to Genetic Map Expansion in Pea Recombinant Inbred Populations Genetics, October 1, 2002; 162(2): 861 - 873. [Abstract] [Full Text] [PDF]

				L. Fishman, A. J. Kelly, E. Morgan, and J. H. Willis A Genetic Map in the Mimulus guttatus Species Complex Reveals Transmission Ratio Distortion due to Heterospecific Interactions Genetics, December 1, 2001; 159(4): 1701 - 1716. [Abstract] [Full Text] [PDF]

				Y.-D. Tan, C. Wan, Y. Zhu, C. Lu, Z. Xiang, and H.-W. Deng An Amplified Fragment Length Polymorphism Map of the Silkworm Genetics, March 1, 2001; 157(3): 1277 - 1284. [Abstract] [Full Text]

				J. Peng, A. B. Korol, T. Fahima, M. S. Röder, Y. I. Ronin, Y. C. Li, and E. Nevo Molecular Genetic Maps in Wild Emmer Wheat, Triticum dicoccoides: Genome-Wide Coverage, Massive Negative Interference, and Putative Quasi-Linkage Genome Res., October 1, 2000; 10(10): 1509 - 1531. [Abstract] [Full Text]

				J. D. Faris, K. M. Haen, and B. S. Gill Saturation Mapping of a Gene-Rich Recombination Hot Spot Region in Wheat Genetics, February 1, 2000; 154(2): 823 - 835. [Abstract] [Full Text]

				R. T. Chetelat, V. Meglic, and P. Cisneros A Genetic Map of Tomato Based on BC1 Lycopersicon esculentum Solanum lycopersicoides Reveals Overall Synteny but Suppressed Recombination Between These Homeologous Genomes Genetics, February 1, 2000; 154(2): 857 - 867. [Abstract] [Full Text]