Cotton Cotyledon cDNA Encoding a Peroxidase

Ritter, Dorothy A.; Allen, Randy D.; Trolinder, Norma L.; Hughes, D. Wayne; Galau, Glenn A.

doi:10.1104/pp.102.4.1351

Cited by 10 publications

(3 citation statements)

References 4 publications

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“…One shows 85% identity to a secretory peroxidase thought to be involved in response to several different stresses (Tognolli et al 2002) and that is highly homologous to a peroxidase upregulated in response to salt stress in cotton (Ritter et al 1993). Another shows homology to a heat-shock protein from Arabidopsis.…”

Section: Discussionmentioning

confidence: 99%

Selective Sweeps Reveal Candidate Genes for Adaptation to Drought and Salt Tolerance in Common Sunflower, Helianthus annuus

2007

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Here we report the results of an analysis of variation at 128 EST-based microsatellites in wild Helianthus annuus, using populations from the species' typical plains habitat in Kansas and Colorado, as well as two arid desert and two distinct brackish marsh areas in Utah. The test statistics lnRV and lnRH were used to find regions of the genome that were significantly less variable in one population relative to the others and thus are likely to contain genes under selection. A small but detectable percentage (1.5-6%) of genes showed evidence for selection from both statistics in any particular environment, and a total of 17 loci showed evidence of selection in at least one environment. Distance-based measures provided additional evidence of selection for 15 of the 17 loci. Global F ST -values were significantly higher for candidate loci, as expected under divergent selection. However, pairwise F ST -values were lower for populations that shared a selective sweep. Moreover, while spatially separated populations undergoing similar selective pressures showed evidence of divergence at some loci, they evolved in concert at other loci. Thus, this study illustrates how selective sweeps might contribute both to the integration of conspecific populations and to the differentiation of races or species.

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Section: Discussionmentioning

confidence: 99%

Selective Sweeps Reveal Candidate Genes for Adaptation to Drought and Salt Tolerance in Common Sunflower, Helianthus annuus

2007

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“…PODs have been associated with high salinity stress in a few plants. Ritter et al (1993) demonstrated a peroxidase mRNA was induced 3fold in the young leaves of saltstressed cotton plants. Kumar et al (2011) indicated that the expression levels of CrPrx3 and CrPrx4, two new class III POD genes, were downregulated in Catharanthus roseus under salt stress.…”

Section: Discussionmentioning

confidence: 98%

Isolation and Characterization of a Class III Peroxidase cDNA from Cucumber under Salt Stress

Fan

Chen

Zhou

et al. 2014

J. Amer. Soc. Hort. Sci.

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Salt stress reduces the fresh weight, dry weight, and relative growth rate of cucumber (Cucumis sativus) seedlings and results in serious quality loss in cucumber production. Our previous study indicated that the netting-associated peroxidase (CsaNAPOD) protein in cucumber seedling roots was induced by salt stress. Here, we amplified the coding sequence of CsaNAPOD from a cDNA isolated from the roots of cucumber seedlings. Sequence analysis indicated that the coding sequence of CsaNAPOD is 1035 bp, encoding a deduced protein of 344 amino acids, with a predicated molecular weight of 37.2 kD and theoretical isoelectric point of 5.64. The deduced amino acid sequence of CsaNAPOD showed high sequence similarity to peroxidases (PODs) from other plant species. Moreover, CsaNAPOD possesses the typical sequence structures of class III PODs and indicated that CsaNAPOD belongs to this subfamily. CsaNAPOD was highly expressed in the roots and was weakly expressed in the stems and leaves of cucumber seedlings. Salt stress significantly increased the expression of CsaNAPOD in the leaves during the entire experimental period compared with the control, and the expression of CsaNAPOD in roots was reduced at 6 hours and induced at 48 and 72 hours by salt treatment. In stems, the expression of CsaNAPOD declined at 48 and 72 hours as a result of the salt treatment compared with the control. These results indicate that the expression of CsaNAPOD responded to salt stress in cucumber seedlings, and the expression patterns under salt stress in different tissues were not identical. Our research suggests that CsaNAPOD may have potential function during the plant response to salt stress.

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“…malvacearum (Delannoy et al 2003(Delannoy et al , 2005. POD8 is an anionic peroxidase predicted to be associated with the apoplast or cell wall (Delannoy et al 2006;Ritter et al 1993) and shows almost exclusive expression in cotton roots (Delannoy et al 2006). POD4 and POD8 transcript levels in roots of control and RKN-infected M315 and M8 plants were measured by qRT-PCR.…”

Section: Temporal Expression Of Defense-related Genes Following Rkn Imentioning

confidence: 98%

Molecular characterization and temporal expression analyses indicate that the MIC (Meloidogyne Induced Cotton) gene family represents a novel group of root-specific defense-related genes in upland cotton (Gossypium hirsutum L.)

Wubben

Callahan

Hayes

et al. 2008

Planta

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The molecular events underlying the resistance of Upland cotton (Gossypium hirsutum L.) to the root-knot nematode (RKN) are largely unknown. In this report, we further characterize the previously identified MIC3 gene including the identification of 14 related MIC cDNAs in nematode-infected roots of allotetraploid cotton that show >85% identity with MIC3. A time-course analysis of RKN infection in resistant and susceptible cotton lines showed that maximum MIC transcript accumulation occurred immediately prior to the phenotypic manifestation of resistance. MIC expression was not induced by mechanical wounding or by virulent reniform nematode infection. MIC expression was undetectable in cotton leaves undergoing a hypersensitive response to Xanthomonas campestris. A time-course analysis of defense gene expression (PR10, ERF5, CDNS, LOX1, POD4, POD8) in resistant and susceptible cotton roots showed that RKN infection specifically elicits the induction of MIC in resistant roots and not other common defense-signaling pathways. These results suggest that cotton resistance to RKN involves novel defense-signaling pathways and further supports the idea that the MIC genes are intimately involved in this resistance response and represent a group of root-specific defense-related genes in cotton.

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Cotton Cotyledon cDNA Encoding a Peroxidase

Cited by 10 publications

References 4 publications

Selective Sweeps Reveal Candidate Genes for Adaptation to Drought and Salt Tolerance in Common Sunflower, Helianthus annuus

Selective Sweeps Reveal Candidate Genes for Adaptation to Drought and Salt Tolerance in Common Sunflower, Helianthus annuus

Isolation and Characterization of a Class III Peroxidase cDNA from Cucumber under Salt Stress

Molecular characterization and temporal expression analyses indicate that the MIC (Meloidogyne Induced Cotton) gene family represents a novel group of root-specific defense-related genes in upland cotton (Gossypium hirsutum L.)

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