Genomics of Cold Hardiness in Woody Plants

Wisniewski, Michael; Nassuth, Annette; Teulières, Chantal; Marque, Christiané; Rowland, J.; Cao, Phi Bang; Brown, Allan

doi:10.1080/07352689.2014.870408

Cited by 112 publications

(97 citation statements)

References 218 publications

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“…Reproduction and low-temperature tolerance Temperate plants have evolved adaptive mechanisms and capacities to survive low temperatures [104][105][106] . Endurance of near-and sub-freezing environments involves the active process of cold acclimation whereby exposure to non-lethal low temperatures enables plants to acquire cold hardiness for overwintering.…”

Section: Solutions For Aluminium and Boron Toxicitymentioning

confidence: 99%

Genetic mechanisms of abiotic stress tolerance that translate to crop yield stability

2015

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Crop yield reduction as a consequence of increasingly severe climatic events threatens global food security. Genetic loci that ensure productivity in challenging environments exist within the germplasm of crops, their wild relatives and species that are adapted to extreme environments. Selective breeding for the combination of beneficial loci in germplasm has improved yields in diverse environments throughout the history of agriculture. An effective new paradigm is the targeted identification of specific genetic determinants of stress adaptation that have evolved in nature and their precise introgression into elite varieties. These loci are often associated with distinct regulation or function, duplication and/or neofunctionalization of genes that maintain plant homeostasis.

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Section: Solutions For Aluminium and Boron Toxicitymentioning

confidence: 99%

Genetic mechanisms of abiotic stress tolerance that translate to crop yield stability

2015

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“…They activate the transcription of cold‐responsive genes by binding to their promoters (Jaglo‐Ottosen et al ., ). Three CBF genes in Arabidopsis ( AtCBF1 , AtCBF2 , and AtCBF3 ) (Medina et al ., ) and five in apple ( MdCBF1 , MdCBF2 , MdCBF3 , MdCBF4 , and MdCBF5 ) (Wisniewski et al ., ; An et al ., , ) have been studied in the modulation of cold stress response. Besides the CBF cold response pathway, CBF‐independent pathways also play essential roles in the cold stress response (Fowler and Thomashow, ; Zhu et al ., ; Chinnusamy et al ., ).…”

Section: Introductionmentioning

confidence: 99%

R2R3‐MYB transcription factor MdMYB23 is involved in the cold tolerance and proanthocyanidin accumulation in apple

et al. 2018

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Cold stress severely affects plant growth and yield. C-repeat binding factors (CBFs) play important roles in the response to cold stress. In the present study, we identified an R2R3-MYB transcription factor (TF) MdMYB23 from apple (Malus × domestic) using transcriptome analyses, which was notably induced in response to cold stress. Transgenic apple calli and Arabidopsis with overexpression of MdMYB23 exhibited increased cold tolerance. Electrophoretic mobility shift assay (EMSA) and transient expression assays indicated that MdMYB23 directly bound to the promoters of MdCBF1 and MdCBF2 and activated their expression. MdMYB23 interacted with the promoter of MdANR, a key modulator of proanthocyanidin biosynthesis, and activated its expression to promote proanthocyanidin accumulation and reactive oxygen species (ROS) scavenging. MdBT2 was identified as an MdMYB23-interacting protein using yeast two-hybrid (Y2H), pull-down, and bimolecular fluorescence complementation (BiFC) assays. MdBT2 repressed cold tolerance and proanthocyanidin accumulation by promoting the degradation of MdMYB23 protein. Our findings shed light on the functions of MYB TFs and underlying mechanism in the modulation of plant cold tolerance.

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“…Overexpression of a C-repeat binding factor (CBF) gene in apple (Malus domestica) resulted in delayed bud break in the spring and increased sensitivity to short photoperiods with respect to the start of dormancy (Wisniewski et al, 2015). Regulatory pathways in woody plants for cold hardy genes such as CBF are more complex than those of herbaceous plants as gene manipulation was shown to also affect growth and flowering (Benedict et al, 2006;Wisniewski et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Morpho-Physiological and Genomic Evaluation of Juglans Species Reveals Regional Maladaptation to Cold Stress

et al. 2020

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Climate change may have unpredictable effects on the cold hardiness of woody species planted outside of their range of origin. Extreme undulations in temperatures may exacerbate susceptibility to cold stress, thereby interfering with productivity and ecosystem functioning. Juglans L. and their naturally occurring interspecific F1 hybrids, are distributed natively across many temperate regions, and J. regia has been extensively introduced. Cold hardiness, an environmental and genetic factor yet to be evaluated in many native and introduced Juglans species, may be a limiting factor under future climate change and following species introductions. We evaluated cold hardiness of native North American and Eastern Asian Juglans along with J. regia genotypes using field data from the Midwestern United States (Indiana), controlled freezing tests, and genome sequencing with close assessment of Juglans cold hardy genes. Many Juglans species previously screened for cold-hardiness were genotypes derived from the Midwest, California, and Europe. In 2014, despite general climate adaptation, Midwestern winter temperatures of −30 • C killed J. regia originating from California; however, naturalized Midwestern J. regia survived and displayed low damage. Hybridization of J. regia with black walnut (J. nigra) and butternut (J. cinerea) produced F1s displaying greater cold tolerance than pure J. regia. Cold hardiness and growth are variable in Midwestern J. regia compared to native Juglans, East Asian Juglans, and F1 hybrids. Phylogeny analyses revealed that J. cinerea sorted with East Asian species using the nuclear genome but with North American species using the organellar genome. Investigation of selected cold hardy genes revealed that J. regia was distinct from other species and exhibited less genetic diversity than native Juglans species Average whole genome heterozygosity and Tajima's D for cold hardy genes was low within J. regia samples and significantly higher for hybrid as well as J. nigra. We confirmed that molecular and morpho-physiological data were highly correlated and thus can be used effectively to characterize cold hardiness in Juglans species. We conclude that the genetic diversity within local J. regia populations is low and additional germplasm is needed for development of more regionally adapted J. regia varieties.

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Genomics of Cold Hardiness in Woody Plants

Cited by 112 publications

References 218 publications

Genetic mechanisms of abiotic stress tolerance that translate to crop yield stability

Genetic mechanisms of abiotic stress tolerance that translate to crop yield stability

R2R3‐MYB transcription factor MdMYB23 is involved in the cold tolerance and proanthocyanidin accumulation in apple

Morpho-Physiological and Genomic Evaluation of Juglans Species Reveals Regional Maladaptation to Cold Stress

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