Euphytica

, Volume 154, Issue 3, pp 317–339

Through the genetic bottleneck: O. rufipogon as a source of trait-enhancing alleles for O. sativa

  • Susan R. McCouch
  • Megan Sweeney
  • Jiming Li
  • Hui Jiang
  • Michael Thomson
  • Endang Septiningsih
  • Jeremy Edwards
  • Pilar Moncada
  • Jinhua Xiao
  • Amanda Garris
  • Tom Tai
  • Cesar Martinez
  • Joe Tohme
  • M. Sugiono
  • Anna McClung
  • Long Ping Yuan
  • Sang-Nag Ahn
Article

DOI: 10.1007/s10681-006-9210-8

Cite this article as:
McCouch, S.R., Sweeney, M., Li, J. et al. Euphytica (2007) 154: 317. doi:10.1007/s10681-006-9210-8

Abstract

This paper summarizes results from a decade of collaborative research using advanced backcross (AB) populations to a) identify quantitative trait loci (QTL) associated with improved performance in rice and to b) clone genes underlying key QTLs of interest. We demonstrate that AB-QTL analysis is capable of (1) successfully uncovering positive alleles in wild germplasm that were not obvious based on the phenotype of the parent (2) offering an estimation of the breeding value of exotic germplasm, (3) generating near isogenic lines that can be used as the basis for gene isolation and also as parents for further crossing in a variety development program and (4) providing gene-based markers for targeted introgression of alleles using marker-assisted-selection (MAS). Knowledge gained from studies examining the population structure and evolutionary history of rice is helping to illuminate a long-term strategy for exploiting and simultaneously preserving the well-partitioned gene pools in rice.

Keywords

Inter-specific cross Transgressive variation Quantitative trait loci (QTL) Rice (Oryza sativa L.) Marker assisted selection Molecular breeding 

Abbreviations

AB

Advanced backcross

QTL

Quantitative trait loci

MAS

Marker-assisted-selection

NIL

Near isogenic line

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Susan R. McCouch
    • 1
  • Megan Sweeney
    • 1
  • Jiming Li
    • 2
  • Hui Jiang
    • 1
  • Michael Thomson
    • 1
    • 3
  • Endang Septiningsih
    • 1
    • 3
  • Jeremy Edwards
    • 1
    • 4
  • Pilar Moncada
    • 1
    • 5
  • Jinhua Xiao
    • 1
    • 6
  • Amanda Garris
    • 1
    • 7
  • Tom Tai
    • 8
  • Cesar Martinez
    • 9
  • Joe Tohme
    • 9
  • M. Sugiono
    • 10
  • Anna McClung
    • 11
  • Long Ping Yuan
    • 12
  • Sang-Nag Ahn
    • 13
  1. 1.Department of Plant Breeding & GeneticsCornell UniversityIthacaUSA
  2. 2.Pioneer Hybrid InternationalJohnstonUSA
  3. 3.International Rice Research InstituteLos Baños, LagunaPhilippines
  4. 4.University of ArizonaTucsonUSA
  5. 5.CenicafeManizales, CaldasColombia
  6. 6.Monsanto CorpSt. LouisUSA
  7. 7.USDA/ARSGenevaUSA
  8. 8.University of CaliforniaDavisUSA
  9. 9.CIATCaliColombia
  10. 10.ICABIOGRADBogorIndonesia
  11. 11.USDA-ARS, DBNRRC & Beaumont Rice Research UnitBeaumontUSA
  12. 12.China National Hybrid Rice Research & Development CenterChangshaP.R. China
  13. 13.Dept of Agronomy, College of AgricultureChungnam National UniversityDaejeonRepublic of Korea

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