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Functional and expression analyses of kiwifruit SOC1-like genes suggest that they may not have a role in the transition to flowering but may affect the duration of dormancy.

Voogd C, Wang T, Varkonyi-Gasic E - J. Exp. Bot. (2015)

Bottom Line: Largely overlapping spatial domains but distinct expression profiles in buds were identified between the SOC1-like gene family members.Ectopic expression of AcSOC1e, AcSOC1i, and AcSOC1f in Actinidia chinensis had no impact on establishment of winter dormancy and failed to induce precocious flowering, but AcSOC1i reduced the duration of dormancy in the absence of winter chilling.These findings add to our understanding of the SOC1-like gene family and the potential diversification of SOC1 function in woody perennials.

View Article: PubMed Central - PubMed

Affiliation: The New Zealand Institute for Plant & Food Research Limited (Plant & Food Research), Mt Albert, Private Bag 92169, Auckland 1142, New Zealand.

No MeSH data available.


Related in: MedlinePlus

Relative expression of kiwifruit SOC1-like genes in leaf, stem, bud, flower, young fruit, mature fruit, seed, and root, normalized to kiwifruit ACTIN (ACT). Error bars represent standard errors (SE) for three replicates.
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Figure 3: Relative expression of kiwifruit SOC1-like genes in leaf, stem, bud, flower, young fruit, mature fruit, seed, and root, normalized to kiwifruit ACTIN (ACT). Error bars represent standard errors (SE) for three replicates.

Mentions: To associate further the biological function of the identified kiwifruit SOC1-like genes with specific developmental processes, their expression in eight representative vegetative and reproductive tissues of the kiwifruit plant was analysed using reverse transcription–quantitative PCR (Fig. 3). Overall, kiwifruit SOC1-like genes were found to have the highest expression in vegetative tissues, with AcSOC1e and AcSOC1i predominantly expressed in buds, and the remaining genes predominantly expressed in leaves. None of the AcSOC1-like transcripts was detected in significant quantities in fruit, and only AcSOC1e was detected in seeds. These findings were consistent with ESTs originating mainly from Actinidia leaf and bud tissues. All AcSOC1-like genes showed relatively stable, non-oscillating expression patterns in the leaf during the day:night cycle (Fig. 4).


Functional and expression analyses of kiwifruit SOC1-like genes suggest that they may not have a role in the transition to flowering but may affect the duration of dormancy.

Voogd C, Wang T, Varkonyi-Gasic E - J. Exp. Bot. (2015)

Relative expression of kiwifruit SOC1-like genes in leaf, stem, bud, flower, young fruit, mature fruit, seed, and root, normalized to kiwifruit ACTIN (ACT). Error bars represent standard errors (SE) for three replicates.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4507769&req=5

Figure 3: Relative expression of kiwifruit SOC1-like genes in leaf, stem, bud, flower, young fruit, mature fruit, seed, and root, normalized to kiwifruit ACTIN (ACT). Error bars represent standard errors (SE) for three replicates.
Mentions: To associate further the biological function of the identified kiwifruit SOC1-like genes with specific developmental processes, their expression in eight representative vegetative and reproductive tissues of the kiwifruit plant was analysed using reverse transcription–quantitative PCR (Fig. 3). Overall, kiwifruit SOC1-like genes were found to have the highest expression in vegetative tissues, with AcSOC1e and AcSOC1i predominantly expressed in buds, and the remaining genes predominantly expressed in leaves. None of the AcSOC1-like transcripts was detected in significant quantities in fruit, and only AcSOC1e was detected in seeds. These findings were consistent with ESTs originating mainly from Actinidia leaf and bud tissues. All AcSOC1-like genes showed relatively stable, non-oscillating expression patterns in the leaf during the day:night cycle (Fig. 4).

Bottom Line: Largely overlapping spatial domains but distinct expression profiles in buds were identified between the SOC1-like gene family members.Ectopic expression of AcSOC1e, AcSOC1i, and AcSOC1f in Actinidia chinensis had no impact on establishment of winter dormancy and failed to induce precocious flowering, but AcSOC1i reduced the duration of dormancy in the absence of winter chilling.These findings add to our understanding of the SOC1-like gene family and the potential diversification of SOC1 function in woody perennials.

View Article: PubMed Central - PubMed

Affiliation: The New Zealand Institute for Plant & Food Research Limited (Plant & Food Research), Mt Albert, Private Bag 92169, Auckland 1142, New Zealand.

No MeSH data available.


Related in: MedlinePlus