Genetic architecture of aerial and root traits in field-grown grafted grapevines is largely independent.

07:00 EST 5th January 2018 | BioPortfolio

Summary of "Genetic architecture of aerial and root traits in field-grown grafted grapevines is largely independent."

QTLs were identified for traits assessed on field-grown grafted grapevines. Root number and section had the largest phenotypic variance explained. Genetic control of root and aerial traits was independent. Breeding new rootstocks for perennial crops remains challenging, mainly because of the number of desirable traits which have to be combined, these traits include good rooting ability and root development. Consequently, the present study analyzes the genetic architecture of root traits in grapevine. A segregating progeny of 138 F1 genotypes issued from an inter-specific cross between Vitis vinifera cv. Cabernet-Sauvignon × V. riparia cv. Gloire de Montpellier, used as rootstock, was phenotyped in grafted plants grown for 2 years in the field. Seven traits, related to aerial and root development, were quantified. Heritability ranged between 0.44 for aerial biomass to 0.7 for root number. Total root number was related to the number of fine roots, while root biomass was related to the number of coarse roots. Significant quantitative trait loci (QTLs) were identified for all the traits studied with some of them explaining approximately 20% of phenotypic variance. Only a single QTL co-localized for root and aerial biomass. Identified QTLs for aerial-to-root biomass ratio suggest that aerial and root traits are controlled independently. Genes known to be involved in auxin signaling pathways and phosphorus nutrition, whose orthologues were previously shown to regulate root development in Arabidopsis, were located in the confidence intervals of several QTLs. This study opens new perspectives for breeding rootstocks with improved root development capacities.


Journal Details

This article was published in the following journal.

Name: TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
ISSN: 1432-2242


DeepDyve research library

PubMed Articles [15404 Associated PubMed Articles listed on BioPortfolio]

The Quantitative Genetic Control of Root Architecture in Maize.

Roots remain an under-explored frontier in plant genetics despite their well-known influence on plant development, agricultural performance, and competition in the wild. Visualizing and measuring root...

Drought-induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials.

Extreme drought is likely to become more frequent and intense as a result of global climate change, which may significantly impact plant root traits and responses (i.e., morphology, production, turnov...

Leveraging GWAS for complex traits to detect signatures of natural selection in humans.

Natural selection can shape the genetic architecture of complex traits. In human populations, signals of positive selection at genetic loci have been detected through a variety of genome-wide scanning...

Pleiotropy, cooperation, and the social evolution of genetic architecture.

Pleiotropy has been suggested as a novel mechanism for stabilising cooperation in bacteria and other microbes. The hypothesis is that linking cooperation with a trait that provides a personal (private...

Characterization of a soybean (Glycine max L. Merr.) germplasm collection for root traits.

Root systems that improve resource uptake and penetrate compacted soil (hardpan) are important for improving soybean (Glycine max L. Merr.) productivity in optimal and sub-optimal environments. The ob...

Clinical Trials [3883 Associated Clinical Trials listed on BioPortfolio]

Genetic Polymorphisms in Idiopathic Pulmonary Fibrosis (IPF)

The purposes of this study are: - to determine if there are specific genetic traits that might explain why patients have developed pulmonary fibrosis; - to determine if ...

Genetic Factors and Interrelationships for Cancer Risk-Related Behaviors and Complex Traits

We propose to conduct a multifactorial genetic study of cancer risk-related behaviors and other complex human characteristics. The main areas of interest are tobacco smoking, excess alcoh...

Genetic Predictors of Variability in the Drug-Drug Interaction Between Darunavir/Ritonavir and Pravastatin

Pravastatin (Pravachol) is approved by the Food and Drug Administration (FDA) and is used to treat high cholesterol. Darunavir (Prezista) and ritonavir (Norvir) are approved by the Food a...

Influence of External Factors on Skeletal Growth in Youth

Objective: Prospective study regulation in bone mass, size, architecture, cortical, trabecular bone, soft tissues and risk factors for cardiovascular disease at growth. Determine regulati...

Trial of Different Wound Dressings in Split-skin Grafted Third Degree Burns

In plastic and reconstructive surgery, treatment strategies of second-degree burn wounds and split-skin grafted third-degree burn wounds aim at reducing infection and improving reepithelia...

Medical and Biotech [MESH] Definitions

The art and science of designing buildings and structures. More generally, it is the design of the total built environment, including town planning, urban design, and landscape architecture.

Works consisting of drawings of architecture and architectural projects, whether the project was executed or not. (Art & Architecture Thesaurus, 1990, v.2)

Works on the art and science of designing buildings and structures. More generally, works on the design of the total built environment, including town planning, urban design, and landscape architecture.

Production of new arrangements of DNA by various mechanisms such as assortment and segregation, CROSSING OVER; GENE CONVERSION; GENETIC TRANSFORMATION; GENETIC CONJUGATION; GENETIC TRANSDUCTION; or mixed infection of viruses.

A plant genus of the family BRASSICACEAE that is grown in rock gardens. T. arvense is grown for its large, round ornamental seed pods. The common name of pennycress usually refers to this genus but may also refer to the genus Microthlaspi.

Quick Search


DeepDyve research library

Relevant Topics

GMO Crops
A genetically modified organism (GMO) is an organism whose genetic material has been altered using genetic engineering techniques. Organisms that have been genetically modified include micro-organisms such as bacteria and yeast, insects, plants, fish, an...

Women's Health
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...

Searches Linking to this Article