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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1995 Jun 20;92(13):6127–6131. doi: 10.1073/pnas.92.13.6127

The weediness of wild plants: molecular analysis of genes influencing dispersal and persistence of johnsongrass, Sorghum halepense (L.) Pers.

A H Paterson 1, K F Schertz 1, Y R Lin 1, S C Liu 1, Y L Chang 1
PMCID: PMC41655  PMID: 11607551

Abstract

Many major weeds rely upon vegetative dispersal by rhizomes and seed dispersal by "shattering" of the mature inflorescence. We report molecular analysis of these traits in a cross between cultivated and wild species of Sorghum that are the probable progenitors of the major weed "johnsongrass." By restriction fragment length polymorphism mapping, variation in the number of rhizomes producing above-ground shoots was associated with three quantitative trait loci (QTLs). Variation in regrowth (ratooning) after overwintering was associated with QTLs accounting for additional rhizomatous growth and with QTLs influencing tillering. Vegetative buds that become rhizomes are similar to those that become tillers--one QTL appears to influence the number of such vegetative buds available, and additional independent genes determine whether individual buds differentiate into tillers or rhizomes. DNA markers described herein facilitate cloning of genes associated with weediness, comparative study of rhizomatousness in other Poaceae, and assessment of gene flow between cultivated and weedy sorghums--a risk that constrains improvement of sorghum through biotechnology. Cloning of "weediness" genes may create opportunities for plant growth regulation, in suppressing propagation of weeds and enhancing productivity of major forage, turf, and "ratoon" crops.

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Selected References

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  1. Ahn S., Anderson J. A., Sorrells M. E., Tanksley S. D. Homoeologous relationships of rice, wheat and maize chromosomes. Mol Gen Genet. 1993 Dec;241(5-6):483–490. doi: 10.1007/BF00279889. [DOI] [PubMed] [Google Scholar]
  2. Ahn S., Tanksley S. D. Comparative linkage maps of the rice and maize genomes. Proc Natl Acad Sci U S A. 1993 Sep 1;90(17):7980–7984. doi: 10.1073/pnas.90.17.7980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Casas A. M., Kononowicz A. K., Zehr U. B., Tomes D. T., Axtell J. D., Butler L. G., Bressan R. A., Hasegawa P. M. Transgenic sorghum plants via microprojectile bombardment. Proc Natl Acad Sci U S A. 1993 Dec 1;90(23):11212–11216. doi: 10.1073/pnas.90.23.11212. [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. Lander E. S., Botstein D. Mapping mendelian factors underlying quantitative traits using RFLP linkage maps. Genetics. 1989 Jan;121(1):185–199. doi: 10.1093/genetics/121.1.185. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Lee S. W., Tomasetto C., Sager R. Positive selection of candidate tumor-suppressor genes by subtractive hybridization. Proc Natl Acad Sci U S A. 1991 Apr 1;88(7):2825–2829. doi: 10.1073/pnas.88.7.2825. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Liang P., Pardee A. B. Differential display of eukaryotic messenger RNA by means of the polymerase chain reaction. Science. 1992 Aug 14;257(5072):967–971. doi: 10.1126/science.1354393. [DOI] [PubMed] [Google Scholar]
  8. Paterson A. H., Damon S., Hewitt J. D., Zamir D., Rabinowitch H. D., Lincoln S. E., Lander E. S., Tanksley S. D. Mendelian factors underlying quantitative traits in tomato: comparison across species, generations, and environments. Genetics. 1991 Jan;127(1):181–197. doi: 10.1093/genetics/127.1.181. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Paterson A. H., Lander E. S., Hewitt J. D., Peterson S., Lincoln S. E., Tanksley S. D. Resolution of quantitative traits into Mendelian factors by using a complete linkage map of restriction fragment length polymorphisms. Nature. 1988 Oct 20;335(6192):721–726. doi: 10.1038/335721a0. [DOI] [PubMed] [Google Scholar]
  10. Woo S. S., Jiang J., Gill B. S., Paterson A. H., Wing R. A. Construction and characterization of a bacterial artificial chromosome library of Sorghum bicolor. Nucleic Acids Res. 1994 Nov 25;22(23):4922–4931. doi: 10.1093/nar/22.23.4922. [DOI] [PMC free article] [PubMed] [Google Scholar]

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