marker-assisted selection in wheat - ictsd

Chapter 14 – Marker-assisted selection in Eucalyptus 275bases and genomic resources and therebyexpanding the value of such genomesequences. As such genome projectsadvance and new and more powerful analyticaltools become accessible, the truechallenge to dissecting the complexity ofeconomically-important traits in Eucalyptusand implementing MAS will depend to alarge extent on our ability to phenotypetrees accurately, analyse the overwhelmingamount of genomic data available and translatethis into truly useful molecular tools forbreeding. MAS should be considered on acase-by-case basis and without overstatingthe gains to be expected until hard experimentaldata are accumulated on the actualgains made from its application withinindustrial forests beyond those which canbe attained by comparable investment inconventional phenotypic selection.AcknowledgmentsI am very thankful to the Ministry ofScience and Technology of Brazil and theparticipating forestry companies in theGenolyptus project for the continuedcompetitive grant support for research andthe Brazilian National Research Council(CNPq) for its support through a researchfellowship. I am also very grateful to allmy undergraduate and graduate studentsand research collaborators from severaluniversities in Brazil and around the worldand to breeders from private companiesfor discussions and scientific inputs. I wishto make a special acknowledgment to mygood friend Teotônio Francisco de Assis,an icon of Eucalyptus breeding worldwide,for having introduced me to this wonderfulworld of Eucalyptus genetics and breeding.ReferencesBaril, C.P., Verhaegen, D., Vigneron, P., Bouvet, J.M. & Kremer, A. 1997. Structure of the specificcombining ability between two species of Eucalyptus. I. RAPD data. Theor. Appl. Genet. 94:796–803.Beavis, W.D. 1998. QTL analyses: power, precision, and accuracy. In H.A. Paterson, ed. Moleculardissection of complex traits, pp. 145–162. Boca Raton, FL, USA, CRC.Binkley, D. & Stape, J.L. 2004 Sustainable management of eucalypt plantations in a changingworld. In M. Tomé, ed. Proc. IUFRO Conf. Eucalyptus in a Changing World. CD-ROM. Aveiro,Portugal, Instituto Investigação de Floresta e Papel (RAIZ). Aveiro, Portugal,Borevitz, J.O., Liang, D., Plouffe, D., Chang, H.S., Zhu, T., Weigel, D., Berry, C.C., Winzeler, E.& Chory, J. 2003. Large-scale identification of single-feature polymorphisms in complex genomes.Genome Res. 13: 513–523.Borralho, N.M.G. 2001. The purpose of breeding is breeding for a purpose. In S. Barros, ed. Proc.IUFRO Internat. Symp. Developing the Eucalypt of the Future. CD-ROM. Valdivia, Chile,INFOR.Borralho, N.M.G., Cotterill, P.P. & Kanowski, P.J. 1993. Breeding objectives for pulp production ofEucalyptus globulus under different industrial cost structures. Can. J. For. Res. 23: 648–656.Brandão, L.G., Campinhos, E. & Ikemori, Y.K. 1984. Brazil’s new forest soars to success. Pulp Pap.Int. 26: 38–40.Brondani, R.P.V., Brondani, C. & Grattapaglia, D. 2002. Towards a genus-wide reference linkagemap for Eucalyptus based exclusively on highly informative microsatellite markers. Mol. Genet.Genomics 267: 338–347.