A Study of Breeding Scheme and Impact of Gene Flow on Gene Diversity within

Authors

  • Mr Chandan Bharti Mishra Research Scholar, Department of Botany University of Delhi

Abstract

Expressions describing the increase of gene correlation within and amongst lineages and individuals of a population are derived. The model permits different migration rates by males and females and accounts for various breeding tactics within lineages. The resultant equations enable calculation of the probabilistic quantities for the fixation indices, rates of loss of genetic variation, accumulation of inbreeding, and coefficients of relationship for the population at any generation. All fixation indices were creating to attain asymptotic values rapidly despite the consistent loss of hereditary variation and accumulation of inbreeding within the population.

References

Powell, W., Morgante, M., Andre, C., Hanafey, M., Vogel, J., Tingey,S. & Rafalski, A. (1996). Molecular Breeding 2, 225-238. 2 Powell, W. Provan J., Machray, G.C., McNicol, J.W. & Waugh, R. (1996). Annual Report of the Scottish Crop Research Institute for 1995, 57-59. 3 Raybould, A.F. & Gray, A.J. (1993). Journal of Applied Ecology 30, 199-219.

Lawson, H.M. & Wright G. McN. (1994). Annual Report of the Scottish Crop Research Institute for 1993, 59-62. 5 Squire, G.R., Rodger, S. & Wright G. (2000). In: Reducing agrochemical use on the arable farm : the TALISMAN and SCARAB projects. MAFF, London. 6 DETR (1999). Genetically Modified Organisms Research Report No. 12. Department of the Environment, Transport and the Regions: London. 7 Graham, J., Squire, G.R., Marshall, B. & Harrison, R.E. (1997). Molecular Ecology 6, 1001-1008. 8 Provan, J., Wilson, N.J., Soranzo, N., McNicol, J.W. & Powell W. (1997). Annual Report of the Scottish Crop Research Institute for 1996/97, 93-94. 9 Augustin, N. (1999). Ph.D. thesis, University of St Andrews. 10 Luby, J.L. & McNicol, R.J. (1995). Theoretical and Applied Genetics 90, 1133-1137.

White, G. (1998). Ph.D. thesis, University of Dundee. 12 Timmons A.M, Charters, Y., Crawford, J.W., Burn, D., Scott, S., Dubbels, S.J., Wilson, N.U.J., Robertson, A., O'Brien, E.T., Squire, G. R. & Wilkinson, M.J. (1996). Nature 380, 487.

Squire, G.R., Crawford, J.W., Ramsay, G., Thompson, C., Bown, J. (1999). Gene flow and Agriculture, BCPC Symposium Proceedings No. 72, 57-64. British Crop Protection Council, Farnham, Surrey. 14 Thompson, C., Squire, G.R., Mackay, G.R., Bradshaw J.E., Crawford, J. & Ramsay, G. (1999). Gene flow and Agriculture, BCPC Symposium Proceedings No. 72, 95-100. British Crop Protection Council, Farnham, Surrey. 15 Ramsay, G., Thompson, C.E., Neilson, S. & Mackay, G. (1999). Gene flow and Agriculture, BCPC Symposium Proceedings No. 72, 209-214. British Crop Protection Council, Farnham, Surrey. 16 Charters, Y.M., Robertson, A., Crawford, J. & Squire, G.R. (1996). Annual Report of the Scottish Crop Research Institute for 1995, 40-42. 17 Marshall, B., Crawford, J.W. & McNicol, J.W. (1994). Annual report of the Scottish Crop Research Institute for 1993, 62-65.

MAFF 1999. Scheme to prevent injurious cross pollination of certain crops grown in North Essex. News release 7 May 1999. Booklet: MAFF, Whitehouse Lane, Huntingdon Road, Cambridge CB3 OLF.

Feb 2014

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Published

2014-02-28

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Vol. 3 No. 3 (2014): FEBRUARY 2014

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