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

S. D. Tanksley; S. Grandillo; T. M. Fulton; D. Zamir; Y. Eshed; V. Petiard; J. Lopez; T. Beck-Bunn

doi:10.1007/BF00223378

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

S. D. Tanksley^*, S. Grandillo, T. M. Fulton, D. Zamir, Y. Eshed, V. Petiard, J. Lopez, T. Beck-Bunn

^*Corresponding author for this work

Institute of Plant Sciences and Genetics in Agriculture

Research output: Contribution to journal › Article › peer-review

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Abstract

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. Q/L-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.

Original language	English
Pages (from-to)	213-224
Number of pages	12
Journal	Theoretical And Applied Genetics
Volume	92
Issue number	2
DOIs	https://doi.org/10.1007/BF00223378
State	Published - Feb 1996

Keywords

Introgression
Molecular markers
Plant breeding
Quantitative trait loci

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10.1007/BF00223378

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@article{aea447dded4a41c6a645695ef256f65c,

title = "Advanced backcross QTL analysis in a cross between an elite processing line of tomato and its wild relative L. pimpinellifolium",

abstract = "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. Q/L-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.",

keywords = "Introgression, Molecular markers, Plant breeding, Quantitative trait loci",

author = "Tanksley, {S. D.} and S. Grandillo and Fulton, {T. M.} and D. Zamir and Y. Eshed and V. Petiard and J. Lopez and T. Beck-Bunn",

year = "1996",

month = feb,

doi = "10.1007/BF00223378",

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volume = "92",

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journal = "Theoretical And Applied Genetics",

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AU - Tanksley, S. D.

AU - Grandillo, S.

AU - Fulton, T. M.

AU - Zamir, D.

AU - Eshed, Y.

AU - Petiard, V.

AU - Lopez, J.

AU - Beck-Bunn, T.

PY - 1996/2

Y1 - 1996/2

N2 - 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. Q/L-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.

AB - 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. Q/L-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.

KW - Introgression

KW - Molecular markers

KW - Plant breeding

KW - Quantitative trait loci

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JF - Theoretical And Applied Genetics

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ER -

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

Abstract

Keywords

UN SDGs

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