Evidence map›Paper›PMID 23256150›Full record

ArticlePlant physiology2013

Functional genomics reveals that a compact terpene synthase gene family can account for terpene volatile production in apple.

Niels J Nieuwenhuizen, Sol A Green, Xiuyin Chen, Estelle J D Bailleul, Adam J Matich, Mindy Y Wang, Ross G Atkinson

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 148 citations in OpenAlex.

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  17. Functional Characterization of a (International journal of molecular sciences · 2023
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3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Niels J NieuwenhuizenNew Zealand Institute for Plant and Food Research Limited, Private Bag 92169, Auckland, New Zealand.
Sol A Green
Xiuyin Chen
Estelle J D Bailleul
Adam J Matich
Mindy Y Wang
Ross G Atkinson
Plant & Food Research · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Terpenes are specialized plant metabolites that act as attractants to pollinators and as defensive compounds against pathogens and herbivores, but they also play an important role in determining the quality of horticultural food products. We show that the genome of cultivated apple (Malus domestica) contains 55 putative terpene synthase (TPS) genes, of which only 10 are predicted to be functional. This low number of predicted functional TPS genes compared with other plant species was supported by the identification of only eight potentially functional TPS enzymes in apple 'Royal Gala' expressed sequence tag databases, including the previously characterized apple (E,E)-α-farnesene synthase. In planta functional characterization of these TPS enzymes showed that they could account for the majority of terpene volatiles produced in cv Royal Gala, including the sesquiterpenes germacrene-D and (E)-β-caryophyllene, the monoterpenes linalool and α-pinene, and the homoterpene (E)-4,8-dimethyl-1,3,7-nonatriene. Relative expression analysis of the TPS genes indicated that floral and vegetative tissues were the primary sites of terpene production in cv Royal Gala. However, production of cv Royal Gala floral-specific terpenes and TPS genes was observed in the fruit of some heritage apple cultivars. Our results suggest that the apple TPS gene family has been shaped by a combination of ancestral and more recent genome-wide duplication events. The relatively small number of functional enzymes suggests that the remaining terpenes produced in floral and vegetative and fruit tissues are maintained under a positive selective pressure, while the small number of terpenes found in the fruit of modern cultivars may be related to commercial breeding strategies.

Indexed as

Multigene FamilyAcyclic MonoterpenesAlkyl and Aryl TransferasesBase SequenceBicyclic MonoterpenesFlowersFruitGas Chromatography-Mass SpectrometryGene Expression ProfilingGene Expression Regulation, EnzymologicGene Expression Regulation, PlantGenomicsMalusMolecular Sequence DataMonoterpenesPhylogenyAcyclic MonoterpenesAlkyl and Aryl Transferasesalpha-pineneBicyclic MonoterpenescaryophyllenelinaloolMonoterpenesPlant ProteinsPolycyclic SesquiterpenesSesquiterpenesTerpenesterpene synthaseVolatile Organic Compounds

Identifiers

PMID23256150
PMCPMC3561019
OpenAlexW2009002262

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.