Co-expression networks provide insights into molecular mechanisms of postharvest temperature modulation of apple fruit to reduce superficial scald

Loren A. Honaas, Heidi L. Hargarten, Stephen P. Ficklin, John A. Hadish, Eric Wafula, Claude Walker Depamphilis, James P. Mattheis, David R. Rudell

Research output: Contribution to journalArticle

Abstract

Temperature conditioning is an effective approach for enhancing some aspects of postharvest apple fruit quality, particularly avoidance of chilling injury. The molecular mechanisms of warming regimes that alter apple fruit quality are poorly understood, as is how warming contributes to avoiding development of the peel disorder superficial scald. Here we report transcriptional responses of ‘Granny Smith’ fruit peel during the early phases of long-term cold storage in response to intermittent warming, an ostensibly organic compliant strategy that effectively reduced scald incidence. We observed two temporally distinct classes of gene expression, which were discovered by co-expression network analyses. One profile is largely concordant with recovery from chilling stress, whereas the other reveals transient shifts marked by hormone signaling and transcription and translation machinery. Altogether, our analyses point to novel aspects of superficial scald etiology and circumscribes a list of candidate genes that may be useful to uncover molecular processes that promote, as well as mitigate, the peel disorder.

Original languageEnglish (US)
Pages (from-to)27-41
Number of pages15
JournalPostharvest Biology and Technology
Volume149
DOIs
StatePublished - Mar 1 2019

Fingerprint

Malus
fruit quality
Fruit
apples
fruit peels
Temperature
fruits
chilling injury
cold storage
translation (genetics)
etiology
temperature
transcription (genetics)
hormones
incidence
gene expression
Hormones
Gene Expression
genes
Incidence

All Science Journal Classification (ASJC) codes

  • Food Science
  • Agronomy and Crop Science
  • Horticulture

Cite this

Honaas, Loren A. ; Hargarten, Heidi L. ; Ficklin, Stephen P. ; Hadish, John A. ; Wafula, Eric ; Depamphilis, Claude Walker ; Mattheis, James P. ; Rudell, David R. / Co-expression networks provide insights into molecular mechanisms of postharvest temperature modulation of apple fruit to reduce superficial scald. In: Postharvest Biology and Technology. 2019 ; Vol. 149. pp. 27-41.
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Co-expression networks provide insights into molecular mechanisms of postharvest temperature modulation of apple fruit to reduce superficial scald. / Honaas, Loren A.; Hargarten, Heidi L.; Ficklin, Stephen P.; Hadish, John A.; Wafula, Eric; Depamphilis, Claude Walker; Mattheis, James P.; Rudell, David R.

In: Postharvest Biology and Technology, Vol. 149, 01.03.2019, p. 27-41.

Research output: Contribution to journalArticle

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