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Isozyme Variation in Broom Snakeweed (Gutierrezia sarothrae)

Published online by Cambridge University Press:  12 June 2017

Yanglin Hou
Affiliation:
Dep. Entomol., Plant Pathol. and Weed Sci., New Mexico State Univ., Las Cruces, NM 88003
Tracy M. Sterling
Affiliation:
Dep. Entomol., Plant Pathol. and Weed Sci., New Mexico State Univ., Las Cruces, NM 88003

Abstract

Broom snakeweed, a perennial rangeland shrub, is highly variable morphologically and can grow under a broad range of environmental conditions. In this study, isozyme analysis using starch gel electrophoresis was used to quantify genetic variability within and among New Mexico populations of broom snakeweed. Eight separate populations of broom snakeweed and one population of threadleaf snakeweed as a comparison were investigated. of the 10 enzyme systems examined, 16 loci were identified in eight populations and two species. Eleven loci were monomorphic in eight populations and two species and five loci were polymorphic in at least one population or species. Genetic variability was large in broom and threadleaf snakeweed populations as determined by isozyme analysis. Genetic variability among broom snakeweed populations was greater than that within populations for the five polymorphic loci. Cluster analysis of genetic distance and identity for the eight populations and two species characterized two major groups. Within broom snakeweed, cluster analysis characterized five groups. The two species shared most common alleles. The genetic variation identified in this research may account for the morphological differences and broad geographical distribution of broom snakeweed.

Type
Special Topics
Copyright
Copyright © 1995 by the Weed Science Society of America 

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References

LITERATURE CITED

1. Bayer, R. J. 1988. Patterns of isozyme variation in western North American Antennaria (Asteraceae: Inulene). 1. Sexual species of section Dioicae . Syst. Bot. 14:389397.Google Scholar
2. Brown, A.H.D. 1979. Enzyme polymorphism in plant populations. Theor. Popul. Biol. 15:142.Google Scholar
3. Farris, J. S. 1972. Estimating phylogenetic trees from distance matrices. Am. Nat. 106:645668.Google Scholar
4. Gottlieb, L. D. 1981. Electrophoretic evidence and plant populations. Prog. Phytochem. 7:146.Google Scholar
5. Haiti, D. L. 1980. Mendelian populations. Pages 7295 in Haiti, D. L., ed. Principles of Population Genetics. Sinauer Associates, Inc. Publ. Sunderland, MA.Google Scholar
6. Haiti, D. L. 1988. Genetic variation. Pages 4962 in Haiti, D. L., ed. A Primer of Population Genetics. Sinauer Associates, Inc. Publ., Sunderland, MA.Google Scholar
7. Hedrick, P. W. 1983. Population genetics and evolutionary biology. Pages 477522 in Hedrick, P. W., ed. Genetics of Populations. Van Nostrand Reinhold Company. Publ. NY.Google Scholar
8. Howard, D. J. and Shields, W. M. 1990. Patterns of genetic variation within and among species of Chauliognathus (Coleoptera: Cantharidae). Ann. Entomol. Soc. Am. 83:326334.Google Scholar
9. Lane, M. A. 1982. Genetic limits of Xanthocephalum, Gutierrezia, Amphiachyris, Gymnosperma, Greenella, and Thurovia (Compositae: Asteraceae). Syst. Bot. 7:405416.Google Scholar
10. Lane, M. A. 1985. Taxonomy of Gutierrezia (Compositae: Asteraceae) in North America. Syst. Bot. 10:728.CrossRefGoogle Scholar
11. Levene, H. 1949. On a matching problem arising in genetics. Ann. Math. Stat. 20:9194.Google Scholar
12. McDaniel, K. C., Pieper, R. D., and Donart, G. B. 1982. Grass response following thinning of broom snakeweed. J. Range Manage. 35:219222.CrossRefGoogle Scholar
13. McDaniel, K. C. and Torell, L. A. 1987. Ecology and management of broom snakeweed. Pages 110115 in Capinera, J. L., ed. Integrated Pest Management of Rangeland: A Shortgrass Prairie Perspective. Westview Press, Boulder, CO.Google Scholar
14. McDaniel, K. C. and Sosebee, R. E. 1988. Ecology management and poisonous properties associated with perennial snakeweeds. Pages 4356 in James, L. F., Ralphs, M. H., and Nielson, D. B. eds. The Ecology and Economic Impact of Poisonous Plants on Livestock Production. Westview Press, Boulder, CO.Google Scholar
15. Nei, M. 1972. Genetic distance between populations. Am. Nat. 106:283292.Google Scholar
16. Nei, M. 1973. Analysis of gene diversity in subdivided populations. Proc. Natl. Acad. Sci. U.S.A. 70:33213323.CrossRefGoogle ScholarPubMed
17. Nei, M. 1977. F-statistics and analysis of gene diversity in subdivided populations. Ann. Human Genet. 41:225233.Google Scholar
18. Nei, M. 1978. Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 89:583590.Google Scholar
19. Nei, M., Tajima, F., and Tateno, Y. 1983. Accuracy of estimated phylogenetic trees from molecular data. Il. Gene frequency data. J. Mol. Evol. 19:153170.CrossRefGoogle Scholar
20. Shields, C. R., Orton, T. J., and Stuber, C. W. 1983. An outline of general resource needs and procedures for the electrophoretic separation of active enzymes from plant tissue. Pages 443468 in Tanksley, S. D. and Orton, T. J., ed. Isozymes in Plant Genetics and Breeding. Elsevier Publ., Amsterdam.CrossRefGoogle Scholar
21. Sokal, R. R and Rohlf, F. J. 1962. The comparison of dendrograms by objective methods. Taxon. 11:3340.CrossRefGoogle Scholar
22. Solbrig, O. T. 1960. Cytotaxonomic and evolutionary studies in the North American species of Gutierrezia (Compositae). Contrib. Gray Herb. 188:161.Google Scholar
23. Solbrig, O. T. 1964. Intraspecific variation in the Gutierrezia sarothrae complex (Compositae-Asteraceae). Contrib. Gray Herb. 193:67115.Google Scholar
24. Swofford, D. L. and Selander, R. B. 1981. BIOSYS-1: a FORTRAN program for the comprehensive analysis of electrophoretic data in population genetics and systematics. J. Hered. 72:281283.Google Scholar
25. Torell, L. A., Gordon, H. W., McDaniel, K. C., and McGinty, A. 1988. Economic impacts of perennial snakeweed infestations. Pages 5769 in James, L. F., Ralphs, M. H. and Nielsen, D. B., eds. The Ecology and Economic Impact of Poisonous Plants on Livestock Production. Westview Press, Boulder, CO.Google Scholar
26. Wright, S. 1949. Population structure in evolution. Proc. Am. Phil. Soc. 93:471478.Google ScholarPubMed
27. Wright, S. 1978. Evolution and the genetics of populations. Page 125257 in Variability Within and Among Natural Populations. vol. 4. University of Chicago Press, Chicago, IL.Google Scholar