Advanced backcross QTL analysis in a cross between an elite processing line of tomato and its wild relative L-pimpinellifolium

被引：8

作者：

Tanksley, SD

Grandillo, S

Fulton, TM

Zamir, D

Eshed, Y

Petiard, V

Lopez, J

BeckBunn, T

机构：

[1] HEBREW UNIV JERUSALEM,FAC AGR,DEPT FIELD CROPS,IL-76100 REHOVOT,ISRAEL

[2] FRANCERECO,TOURS,FRANCE

[3] HISPARECO SA,CTR INVEST & DESARROLLO ALIMENTAC,E-06080 BADAJOZ,SPAIN

[4] PETO SEEDS,WOODLAND HILLS,CA 95695

来源：

THEORETICAL AND APPLIED GENETICS | 1996年 / 92卷 / 02期

关键词：

molecular markers; introgression; plant breeding; quantitative trait loci;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Approximately 170 BC2 plants from a cross between an elite processing inbred (recurrent parent) and the wild species Lycopersicon pimpinellifolium LA1589 (donor parent) were analyzed with segregating molecular markers covering the entire tomato genome. Marker data were used to identify QTLs controlling a battery of horticultural traits measured on BC2F1 and BC3 families derived from the BC2 individuals. Despite its overall inferior appearance, L. pimpinellifolium was shown to possess QTL alleles capable of enhancing most traits important in processing tomato production. QTL-NIL lines, containing specific QTLs modifying fruit size and shape, were subsequently constructed and shown to display the transgressive phenotypes predicted from the original BC2 QTL analysis. The potential of exploiting unadapted and wild germplasm via advanced backcross QTL analysis for the enhancement of elite crop varieties is discussed.

引用

页码：213 / 224

页数：12

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