Cuticular wax composition in Cocos nucifera L.: physicochemical analysis of wax components and mapping of their QTLs onto the coconut molecular linkage map

• DOI: 10.1007/s11295-008-0168-7
• Publication Date: 2008-07-24T09:56:07Z
• Authors: M. Riedel; M. Riederer; D. Becker; A. Herran; A. Kullaya; G. Arana-López; L. Peña-Rodríguez; N. Billotte; V. Sniady; W. Rohde; E. Ritter
• Keywords: Lupeol; Wax ester

Cuticular waxes were extracted from the leaves of a coconut mapping population generated by controlled cross an East African Tall and Rennell Island genotype for construction molecular linkage maps. The wax composition was analyzed capillary gas chromatography/mass spectrometry, eight compounds, their absolute relative amounts determined. As reported previously different ecotype (Malayan Yellow Dwarf), lupeol methyl ether, isoskimmiwallin, skimmiwallin identified as major components cuticular wax. additional compounds characterized 3-β-methoxy lupane (lupane ether), acetic acid esters lupeol, skimmiwallinol, isoskimmiwallinol, respectively. Minor, nonidentified amounted to some 5% total content included triterpenoids, sterols, primary alcohols, fatty acids. variation detected parents progeny with respect allowed quantitative trait locus (QTL) analyses biosynthetic pathways. A 46 QTLs could be mapped onto map which extended amplified fragment length polymorphism single sequence repeat markers into high density more than 1,000 DNA markers. Several colocated traits reflecting observed correlations among characters.