Mode of inheritance of primary metabolic traits in tomato

被引：171

作者：

Schauer, Nicolas ^{[1
]}

Semel, Yaniv ^{[2
,3
]}

Balbo, Ilse ^{[1
]}

Steinfath, Matthias ^{[1
,4
]}

Repsilber, Dirk ^{[1
,5
]}

Selbig, Joachim ^{[1
,4
]}

Pleban, Tzili ^{[2
,3
]}

Zamir, Dani ^{[2
,3
]}

Fernie, Alisdair R. ^{[1
]}

机构：

[1] Max Planck Inst Mol Plant Physiol, D-14476 Potsdam, Germany

[2] Hebrew Univ Jerusalem, Inst Plant Sci & Genet, IL-76100 Rehovot, Israel

[3] Hebrew Univ Jerusalem, Fac Agr, Otto Warburg Ctr Biotechnol, IL-76100 Rehovot, Israel

[4] Univ Potsdam, Inst Biochem & Biol, Dept Bioinformat, D-14476 Potsdam, Germany

[5] Res Inst Biol Farm Anim, D-18196 Dummerstorf, Germany

来源：

PLANT CELL | 2008年 / 20卷 / 03期

关键词：

D O I：

10.1105/tpc.107.056523

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

To evaluate components of fruit metabolic composition, we have previously metabolically phenotyped tomato (Solanum lycopersicum) introgression lines containing segmental substitutions of wild species chromosome in the genetic background of a cultivated variety. Here, we studied the hereditability of the fruit metabolome by analyzing an additional year's harvest and evaluating the metabolite profiles of lines heterozygous for the introgression (ILHs), allowing the evaluation of putative quantitative trait locus (QTL) mode of inheritance. These studies revealed that most of the metabolic QTL (174 of 332) were dominantly inherited, with relatively high proportions of additively (61 of 332) or recessively (80 of 332) inherited QTL and a negligible number displaying the characteristics of overdominant inheritance. Comparison of the mode of inheritance of QTL revealed that several metabolite pairs displayed a similar mode of inheritance of QTL at the same chromosomal loci. Evaluation of the association between morphological and metabolic traits in the ILHs revealed that this correlation was far less prominent, due to a reduced variance in the harvest index within this population. These data are discussed in the context of genomics-assisted breeding for crop improvement, with particular focus on the exploitation of wide biodiversity.

引用

页码：509 / 523

页数：15

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