Multi-environment QTL analysis of plant and flower morphological traits in tetraploid rose

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

Key message: Rose morphological traits such as prickles or petal number are influenced by a few key QTL which were detected across different growing environments—necessary for genomics-assisted selection in non-target environments. Abstract: Rose, one of the world’s most-loved and commercially important ornamental plants, is predominantly tetraploid, possessing four rather than two copies of each chromosome. This condition complicates genetic analysis, and so the majority of previous genetic studies in rose have been performed at the diploid level. However, there may be advantages to performing genetic analyses at the tetraploid level, not least because this is the ploidy level of most breeding germplasm. Here, we apply recently developed methods for quantitative trait loci (QTL) detection in a segregating tetraploid rose population (F1 = 151) to unravel the genetic control of a number of key morphological traits. These traits were measured both in the Netherlands and Kenya. Since ornamental plant breeding and selection are increasingly being performed at locations other than the production sites, environment-neutral QTL are required to maximise the effectiveness of breeding programmes. We detected a number of robust, multi-environment QTL for such traits as stem and petiole prickles, petal number and stem length that were localised on the recently developed high-density SNP linkage map for rose. Our work explores the complex genetic architecture of these important morphological traits at the tetraploid level, while helping to advance the methods for marker–trait exploration in polyploid species.

LanguageEnglish
Pages2055–2069
JournalTheoretical and Applied Genetics
Volume131
Issue number10
Early online date30 Jun 2018
DOIs
Publication statusPublished - Oct 2018

Fingerprint

Tetraploidy
Quantitative Trait Loci
tetraploidy
quantitative trait loci
Rosa
flowers
plant spines
Breeding
ornamental plants
corolla
Polyploidy
Ploidies
Kenya
Program Evaluation
Genomics
Diploidy
stems
Netherlands
Single Nucleotide Polymorphism
breeding

Cite this

@article{40a06f702cb941efa5007d5a3c842ce0,
title = "Multi-environment QTL analysis of plant and flower morphological traits in tetraploid rose",
abstract = "Key message: Rose morphological traits such as prickles or petal number are influenced by a few key QTL which were detected across different growing environments—necessary for genomics-assisted selection in non-target environments. Abstract: Rose, one of the world’s most-loved and commercially important ornamental plants, is predominantly tetraploid, possessing four rather than two copies of each chromosome. This condition complicates genetic analysis, and so the majority of previous genetic studies in rose have been performed at the diploid level. However, there may be advantages to performing genetic analyses at the tetraploid level, not least because this is the ploidy level of most breeding germplasm. Here, we apply recently developed methods for quantitative trait loci (QTL) detection in a segregating tetraploid rose population (F1 = 151) to unravel the genetic control of a number of key morphological traits. These traits were measured both in the Netherlands and Kenya. Since ornamental plant breeding and selection are increasingly being performed at locations other than the production sites, environment-neutral QTL are required to maximise the effectiveness of breeding programmes. We detected a number of robust, multi-environment QTL for such traits as stem and petiole prickles, petal number and stem length that were localised on the recently developed high-density SNP linkage map for rose. Our work explores the complex genetic architecture of these important morphological traits at the tetraploid level, while helping to advance the methods for marker–trait exploration in polyploid species.",
author = "Bourke, {Peter M.} and Gitonga, {Virginia W.} and Voorrips, {Roeland E.} and Visser, {Richard G.F.} and Krens, {Frans A.} and Chris Maliepaard",
year = "2018",
month = "10",
doi = "10.1007/s00122-018-3132-4",
language = "English",
volume = "131",
pages = "2055–2069",
journal = "Theoretical and Applied Genetics",
issn = "0040-5752",
publisher = "Springer Verlag",
number = "10",

}

Multi-environment QTL analysis of plant and flower morphological traits in tetraploid rose. / Bourke, Peter M.; Gitonga, Virginia W.; Voorrips, Roeland E.; Visser, Richard G.F.; Krens, Frans A.; Maliepaard, Chris.

In: Theoretical and Applied Genetics, Vol. 131, No. 10, 10.2018, p. 2055–2069.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Multi-environment QTL analysis of plant and flower morphological traits in tetraploid rose

AU - Bourke, Peter M.

AU - Gitonga, Virginia W.

AU - Voorrips, Roeland E.

AU - Visser, Richard G.F.

AU - Krens, Frans A.

AU - Maliepaard, Chris

PY - 2018/10

Y1 - 2018/10

N2 - Key message: Rose morphological traits such as prickles or petal number are influenced by a few key QTL which were detected across different growing environments—necessary for genomics-assisted selection in non-target environments. Abstract: Rose, one of the world’s most-loved and commercially important ornamental plants, is predominantly tetraploid, possessing four rather than two copies of each chromosome. This condition complicates genetic analysis, and so the majority of previous genetic studies in rose have been performed at the diploid level. However, there may be advantages to performing genetic analyses at the tetraploid level, not least because this is the ploidy level of most breeding germplasm. Here, we apply recently developed methods for quantitative trait loci (QTL) detection in a segregating tetraploid rose population (F1 = 151) to unravel the genetic control of a number of key morphological traits. These traits were measured both in the Netherlands and Kenya. Since ornamental plant breeding and selection are increasingly being performed at locations other than the production sites, environment-neutral QTL are required to maximise the effectiveness of breeding programmes. We detected a number of robust, multi-environment QTL for such traits as stem and petiole prickles, petal number and stem length that were localised on the recently developed high-density SNP linkage map for rose. Our work explores the complex genetic architecture of these important morphological traits at the tetraploid level, while helping to advance the methods for marker–trait exploration in polyploid species.

AB - Key message: Rose morphological traits such as prickles or petal number are influenced by a few key QTL which were detected across different growing environments—necessary for genomics-assisted selection in non-target environments. Abstract: Rose, one of the world’s most-loved and commercially important ornamental plants, is predominantly tetraploid, possessing four rather than two copies of each chromosome. This condition complicates genetic analysis, and so the majority of previous genetic studies in rose have been performed at the diploid level. However, there may be advantages to performing genetic analyses at the tetraploid level, not least because this is the ploidy level of most breeding germplasm. Here, we apply recently developed methods for quantitative trait loci (QTL) detection in a segregating tetraploid rose population (F1 = 151) to unravel the genetic control of a number of key morphological traits. These traits were measured both in the Netherlands and Kenya. Since ornamental plant breeding and selection are increasingly being performed at locations other than the production sites, environment-neutral QTL are required to maximise the effectiveness of breeding programmes. We detected a number of robust, multi-environment QTL for such traits as stem and petiole prickles, petal number and stem length that were localised on the recently developed high-density SNP linkage map for rose. Our work explores the complex genetic architecture of these important morphological traits at the tetraploid level, while helping to advance the methods for marker–trait exploration in polyploid species.

U2 - 10.1007/s00122-018-3132-4

DO - 10.1007/s00122-018-3132-4

M3 - Article

VL - 131

SP - 2055

EP - 2069

JO - Theoretical and Applied Genetics

T2 - Theoretical and Applied Genetics

JF - Theoretical and Applied Genetics

SN - 0040-5752

IS - 10

ER -