Robust markers associated with floral traits in roses are suitable for marker-assisted selection across gene pools

IF 2.6 3区农林科学 Q1 AGRONOMY

Molecular Breeding Pub Date : 2023-12-08 DOI:10.1007/s11032-023-01438-5

Dietmar Schulz, Marcus Linde, Thomas Debener

引用次数: 0

Abstract

We investigated the potential of markers associated with floral traits for parental selection in a cut rose breeding program. We analysed six Kompetitive Allele Specific PCR (KASP) markers for three important floral traits, petal length, petal number and scent, derived from experiments in a garden rose population. The six markers were applied to genotype a collection of 384 parental genotypes used for commercial cut rose breeding. We phenotyped a selection of progeny derived from pairs of parents having either high or low dosages of (contrasting) marker alleles associated with these traits. Significant differences were found between the contrasting progeny groups for each of the traits, although parents with the optimal allele dosage combinations could not always be used for the crosses. This not only supports the robustness of these marker‒trait associations but also demonstrates their potential for commercial rose breeding. It also demonstrates the use of marker information generated in garden rose populations for cut rose breeding.

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与玫瑰花性状相关的稳健标记适用于跨基因库的标记辅助选择

我们研究了与花性状相关的标记在切花玫瑰育种计划中进行亲本选择的潜力。我们分析了六个竞争性等位基因特异性聚合酶链反应（KASP）标记，这六个标记与花瓣长度、花瓣数和香味这三个重要的花性状有关，它们都是在花园玫瑰种群的实验中获得的。这六个标记被用于对用于商业切花玫瑰育种的 384 个亲本基因型进行基因分型。我们对一对亲本的后代进行了表型分析，这对亲本具有与这些性状相关的高剂量或低剂量（对比）标记等位基因。尽管在杂交中并不总能用到具有最佳等位基因剂量组合的亲本，但在每个性状上，对比后代组之间都存在显著差异。这不仅证明了这些标记-性状关联的稳健性，也证明了它们在商业玫瑰育种中的潜力。它还证明了园艺玫瑰种群中产生的标记信息可用于切花玫瑰育种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molecular Breeding 农林科学-农艺学

CiteScore

5.60

自引率

6.50%

发文量

审稿时长

1.5 months

期刊介绍： Molecular Breeding is an international journal publishing papers on applications of plant molecular biology, i.e., research most likely leading to practical applications. The practical applications might relate to the Developing as well as the industrialised World and have demonstrable benefits for the seed industry, farmers, processing industry, the environment and the consumer. All papers published should contribute to the understanding and progress of modern plant breeding, encompassing the scientific disciplines of molecular biology, biochemistry, genetics, physiology, pathology, plant breeding, and ecology among others. Molecular Breeding welcomes the following categories of papers: full papers, short communications, papers describing novel methods and review papers. All submission will be subject to peer review ensuring the highest possible scientific quality standards. Molecular Breeding core areas: Molecular Breeding will consider manuscripts describing contemporary methods of molecular genetics and genomic analysis, structural and functional genomics in crops, proteomics and metabolic profiling, abiotic stress and field evaluation of transgenic crops containing particular traits. Manuscripts on marker assisted breeding are also of major interest, in particular novel approaches and new results of marker assisted breeding, QTL cloning, integration of conventional and marker assisted breeding, and QTL studies in crop plants.