Theoretical and Applied Genetics

, Volume 101, Issue 1–2, pp 292–300 | Cite as

Linkage mapping and QTL analysis in coconut (Cocos nucifera L.)

  • A. Herrán
  • L. Estioko
  • D. Becker
  • M. J. B. Rodriguez
  • W. Rohde
  • E. Ritter
Original Paper

Abstract 

Different DNA marker types were used to construct linkage maps in coconut (Cocos nucifera L.; 2n = 32) for the two parents of the cross Malayan Yellow Dwarf (MYD) × Laguna Tall (LAGT). A total of 382 markers was sufficient to generate 16 linkage groups for each parent. The total genome length corresponded to 2226 cM for the LAGT map and 1266 cM for the MYD map with 4–32 markers per linkage group. Common markers allowed the association of 9 linkage groups for the two parents MYD and LAGT. QTL analysis for the trait early germination identified six loci. These QTLs correlate with early flowering and yield, representing characters which are important in coconut breeding. The co-segregation of markers with these QTLs provides the first opportunity for marker-assisted selection in coconut breeding programmes.

Key words AFLP DNA markers Early germination ISSR ISTR RAPD 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • A. Herrán
    • 1
  • L. Estioko
    • 2
  • D. Becker
    • 3
  • M. J. B. Rodriguez
    • 2
  • W. Rohde
    • 3
  • E. Ritter
    • 1
  1. 1.Neiker, Apartado 46, 01080 Vitoria, Spain Fax: +34945-281422 e-mail: eritter@neiker.netES
  2. 2.PCA-Albay Research Centre, Guinobatan, Albay 4503, PhilippinesXX
  3. 3.MPI für Züchtungsforschung, Carl-von-Linné-Weg 10, 50829 Köln, GermanyDE

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