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. 1997 Apr;145(4):1139–1148. doi: 10.1093/genetics/145.4.1139

Genetics of Hybrid Sterility and Hybrid Breakdown in an Intersubspecific Rice (Oryza Sativa L.) Population

Z Li 1, SRM Pinson 1, A H Paterson 1, W D Park 1, J W Stansel 1
PMCID: PMC1207882  PMID: 9093864

Abstract

F(1) hybrid sterility and ``hybrid breakdown'' of F(2) and later generations in rice (Oryza sativa L.) are common and genetically complicated. We used a restriction fragment length polymorphism linkage map and F(4) progeny testing to investigate hybrid sterility and hybrid breakdown in a cross between ``widely compatible'' O. sativa ssp. japonica cultivar Lemont from the Southern U.S. and ssp. indica cultivar Teqing from China. Our results implicate different genetic mechanisms in hybrid sterility and hybrid breakdown, respectively. Hybrid sterility appeared to be due to recombination within a number of putative differentiated ``supergenes'' in the rice genome, which may reflect cryptic structural rearrangements. The cytoplasmic genome had a large effect on fertility of both male and female gametes in the F(1) hybrids. There appeared to be a pair of complementary genes that behaved like ``wide compatibility'' genes. This pair of genes and the ``gamete eliminator'' (S(1)) or ``egg killer'' (S-5) may influence the phenotypic effects of presumed supergenes in hybrids. Hybrid breakdown appeared to be largely due to incompatibilities between indica and japonica alleles at many unlinked epistatic loci in the genome. These proposed mechanisms may partly account for the complicated nature of postreproductive barriers in rice.

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Selected References

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  1. Brooks L. D., Marks R. W. The organization of genetic variation for recombination in Drosophila melanogaster. Genetics. 1986 Oct;114(2):525–547. doi: 10.1093/genetics/114.2.525. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Cabot E. L., Davis A. W., Johnson N. A., Wu C. I. Genetics of reproductive isolation in the Drosophila simulans clade: complex epistasis underlying hybrid male sterility. Genetics. 1994 May;137(1):175–189. doi: 10.1093/genetics/137.1.175. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Cameron D R, Moav R M. Inheritance in Nicotiana Tabacum Xxvii. Pollen Killer, an Alien Genetic Locus Inducing Abortion of Microspores Not Carrying It. Genetics. 1957 May;42(3):326–335. doi: 10.1093/genetics/42.3.326. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Causse M. A., Fulton T. M., Cho Y. G., Ahn S. N., Chunwongse J., Wu K., Xiao J., Yu Z., Ronald P. C., Harrington S. E. Saturated molecular map of the rice genome based on an interspecific backcross population. Genetics. 1994 Dec;138(4):1251–1274. doi: 10.1093/genetics/138.4.1251. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Clegg M. T., Allard R. W. Patterns of Genetic Differentiation in the Slender Wild Oat Species Avena barbata. Proc Natl Acad Sci U S A. 1972 Jul;69(7):1820–1824. doi: 10.1073/pnas.69.7.1820. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Davis A. W., Noonburg E. G., Wu C. I. Evidence for complex genic interactions between conspecific chromosomes underlying hybrid female sterility in the Drosophila simulans clade. Genetics. 1994 May;137(1):191–199. doi: 10.1093/genetics/137.1.191. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Dobzhansky T. Studies on Hybrid Sterility. II. Localization of Sterility Factors in Drosophila Pseudoobscura Hybrids. Genetics. 1936 Mar;21(2):113–135. doi: 10.1093/genetics/21.2.113. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Hutter P., Ashburner M. Genetic rescue of inviable hybrids between Drosophila melanogaster and its sibling species. 1987 May 28-Jun 3Nature. 327(6120):331–333. doi: 10.1038/327331a0. [DOI] [PubMed] [Google Scholar]
  9. Li Z., Pinson S. R., Park W. D., Paterson A. H., Stansel J. W. Epistasis for three grain yield components in rice (Oryza sativa L.). Genetics. 1997 Feb;145(2):453–465. doi: 10.1093/genetics/145.2.453. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Orr H. A. The population genetics of speciation: the evolution of hybrid incompatibilities. Genetics. 1995 Apr;139(4):1805–1813. doi: 10.1093/genetics/139.4.1805. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Palopoli M. F., Wu C. I. Genetics of hybrid male sterility between drosophila sibling species: a complex web of epistasis is revealed in interspecific studies. Genetics. 1994 Oct;138(2):329–341. doi: 10.1093/genetics/138.2.329. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Rick C. M. Abortion of male and female gametes in the tomato determined by allelic interaction. Genetics. 1966 Jan;53(1):85–96. doi: 10.1093/genetics/53.1.85. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Rick C. M. The tomato ge locus: linkage relations and geographic distribution of alleles. Genetics. 1971 Jan;67(1):75–85. doi: 10.1093/genetics/67.1.75. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. STEBBINS G. L. The inviability, weakness, and sterility of interspecific hybrids. Adv Genet. 1958;9:147–215. doi: 10.1016/s0065-2660(08)60162-5. [DOI] [PubMed] [Google Scholar]
  15. Sano Y. The genic nature of gamete eliminator in rice. Genetics. 1990 May;125(1):183–191. doi: 10.1093/genetics/125.1.183. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Weir B. S., Allard R. W., Kahler A. L. Further analysis of complex allozyme polymorphisms in a barley population. Genetics. 1974 Nov;78(3):911–919. doi: 10.1093/genetics/78.3.911. [DOI] [PMC free article] [PubMed] [Google Scholar]

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