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Multispectral airborne imagery in the field reveals genetic determinisms of morphological and transpiration traits of an apple tree hybrid population in response to water deficit.

Virlet N, Costes E, Martinez S, Kelner JJ, Regnard JL - J. Exp. Bot. (2015)

Bottom Line: Genetic studies of response to water deficit in adult trees are limited by low throughput of the usual phenotyping methods in the field.Here, we aimed at overcoming this bottleneck, applying a new methodology using airborne multispectral imagery and in planta measurements to compare a high number of individuals.An apple tree population, grafted on the same rootstock, was submitted to contrasting summer water regimes over two years.Most QTLs explained 15-20% of variance.Airborne multispectral imaging proved relevant to acquire simultaneous information on a whole tree population and to decipher genetic determinisms involved in response to water deficit.

View Article: PubMed Central - PubMed

Affiliation: Montpellier SupAgro, UMR AGAP 1334, TA-A-108/03, Av. Agropolis, 34398 Montpellier Cedex 5, France Present address: PCBS Department, Rothamsted Research, Harpenden, AL5 2JQ, UK.

No MeSH data available.


Related in: MedlinePlus

Genomic positions of the QTLs detected on the consensus ‘Starkrimson’×’Granny Smith’ (STK×GS) map. QTLs are represented by boxes, in which length represents the LOD-1 confidence interval and extended lines represent the LOD-2 confidence interval. Boxes relative to QTLs for mean values of variables are in white, and those relative to QTLs for standard deviations SD are in black. QTL detected for G-Blups are in bold type and * stand for QTLs detected for G-Blups and G-means.
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Figure 1: Genomic positions of the QTLs detected on the consensus ‘Starkrimson’×’Granny Smith’ (STK×GS) map. QTLs are represented by boxes, in which length represents the LOD-1 confidence interval and extended lines represent the LOD-2 confidence interval. Boxes relative to QTLs for mean values of variables are in white, and those relative to QTLs for standard deviations SD are in black. QTL detected for G-Blups are in bold type and * stand for QTLs detected for G-Blups and G-means.

Mentions: Seventy-four QTLs were detected, mapping over 16 of the 17 linkage groups (LGs) of the consensus STK×GS genetic map. As 56 of these QTLs were found only at specific dates, they are not detailed in the following text. The complete list of QTLs detected is presented in Supplementary Table S1 and Supplementary Fig. S1. The results exposed hereafter (Fig. 1; Table 5) are focusing on the 18 most reliable QTLs that were mapped over nine LGs. These QTLs were detected for G-Blup or for the G-mean, and in some cases for both, whatever the date.


Multispectral airborne imagery in the field reveals genetic determinisms of morphological and transpiration traits of an apple tree hybrid population in response to water deficit.

Virlet N, Costes E, Martinez S, Kelner JJ, Regnard JL - J. Exp. Bot. (2015)

Genomic positions of the QTLs detected on the consensus ‘Starkrimson’×’Granny Smith’ (STK×GS) map. QTLs are represented by boxes, in which length represents the LOD-1 confidence interval and extended lines represent the LOD-2 confidence interval. Boxes relative to QTLs for mean values of variables are in white, and those relative to QTLs for standard deviations SD are in black. QTL detected for G-Blups are in bold type and * stand for QTLs detected for G-Blups and G-means.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4585425&req=5

Figure 1: Genomic positions of the QTLs detected on the consensus ‘Starkrimson’×’Granny Smith’ (STK×GS) map. QTLs are represented by boxes, in which length represents the LOD-1 confidence interval and extended lines represent the LOD-2 confidence interval. Boxes relative to QTLs for mean values of variables are in white, and those relative to QTLs for standard deviations SD are in black. QTL detected for G-Blups are in bold type and * stand for QTLs detected for G-Blups and G-means.
Mentions: Seventy-four QTLs were detected, mapping over 16 of the 17 linkage groups (LGs) of the consensus STK×GS genetic map. As 56 of these QTLs were found only at specific dates, they are not detailed in the following text. The complete list of QTLs detected is presented in Supplementary Table S1 and Supplementary Fig. S1. The results exposed hereafter (Fig. 1; Table 5) are focusing on the 18 most reliable QTLs that were mapped over nine LGs. These QTLs were detected for G-Blup or for the G-mean, and in some cases for both, whatever the date.

Bottom Line: Genetic studies of response to water deficit in adult trees are limited by low throughput of the usual phenotyping methods in the field.Here, we aimed at overcoming this bottleneck, applying a new methodology using airborne multispectral imagery and in planta measurements to compare a high number of individuals.An apple tree population, grafted on the same rootstock, was submitted to contrasting summer water regimes over two years.Most QTLs explained 15-20% of variance.Airborne multispectral imaging proved relevant to acquire simultaneous information on a whole tree population and to decipher genetic determinisms involved in response to water deficit.

View Article: PubMed Central - PubMed

Affiliation: Montpellier SupAgro, UMR AGAP 1334, TA-A-108/03, Av. Agropolis, 34398 Montpellier Cedex 5, France Present address: PCBS Department, Rothamsted Research, Harpenden, AL5 2JQ, UK.

No MeSH data available.


Related in: MedlinePlus