Economic Impact from Unrestricted Spread of Potato Cyst Nematodes in Australia

Hodda, Mike; Cook, David

doi:10.1094/phyto-99-12-1387

Cited by 38 publications

(17 citation statements)

References 44 publications

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“…Given that PCN causes damage to potato crops throughout the world [23], the biology of this new PCN-like species is of considerable economic interest. It has a life cycle of approximately 70 days, with developmental rate dependent on temperature, and reproduces very successfully on potato [24, 25].…”

Section: Introductionmentioning

confidence: 99%

The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers

et al. 2016

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BackgroundThe evolution of animal mitochondrial (mt) genomes has resulted in a highly conserved structure: a single compact circular chromosome approximately 14 to 20 kb long. Within the last two decades exceptions to this conserved structure, such as the division of the genome into multiple chromosomes, have been reported in a diverse set of metazoans. We report on the two circle multipartite mt genome of a newly described cyst nematode, Globodera ellingtonae.ResultsThe G. ellingtonae mt genome was found to be comprised of two circles, each larger than any other multipartite circular mt chromosome yet reported, and both were larger than the single mt circle of the model nematode Caenorhabditis elegans. The genetic content of the genome was disproportionately divided between the two circles, although they shared a ~6.5 kb non-coding region. The 17.8 kb circle (mtDNA-I) contained ten protein-coding genes and two tRNA genes, whereas the 14.4 kb circle (mtDNA-II) contained two protein-coding genes, 20 tRNA genes and both rRNA genes. Perhaps correlated with this division of genetic content, the copy number of mtDNA-II was more than four-fold that of mtDNA-I in individual nematodes. The difference in copy number increased between second-stage and fourth-stage juveniles.ConclusionsThe segregation of gene types to different mt circles in G. ellingtonae could provide benefit by localizing gene functional types to independent transcriptional units. This is the first report of both two-circle and several-circle mt genomes within a single genus. The differential copy number associated with this multipartite mt organization could provide a model system for deconstructing mechanisms regulating mtDNA copy number both in somatic cells and during germline development.Electronic supplementary materialThe online version of this article (doi:10.1186/s12864-016-3047-x) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers

et al. 2016

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“…field and market scale) given predefined pest infestation rates [5]–[7]. Only few quantitative studies have integrated spread with impacts [8]–[10], and none of them accounted for the economic impacts at market level.…”

Section: Introductionmentioning

confidence: 99%

Framework for Modelling Economic Impacts of Invasive Species, Applied to Pine Wood Nematode in Europe

et al. 2012

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BackgroundEconomic impact assessment of invasive species requires integration of information on pest entry, establishment and spread, valuation of assets at risk and market consequences at large spatial scales. Here we develop such a framework and demonstrate its application to the pinewood nematode, Bursaphelenchus xylophilus, which threatens the European forestry industry. The effect of spatial resolution on the assessment result is analysed.Methodology/Principal FindingsDirect economic impacts resulting from wood loss are computed using partial budgeting at regional scale, while impacts on social welfare are computed by a partial equilibrium analysis of the round wood market at EU scale. Substantial impacts in terms of infested stock are expected in Portugal, Spain, Southern France, and North West Italy but not elsewhere in EU in the near future. The cumulative value of lost forestry stock over a period of 22 years (2008–2030), assuming no regulatory control measures, is estimated at €22 billion. The greatest yearly loss of stock is expected to occur in the period 2014–2019, with a peak of three billion euros in 2016, but stabilizing afterwards at 300–800 million euros/year. The reduction in social welfare follows the loss of stock with considerable delay because the yearly harvest from the forest is only 1.8%. The reduction in social welfare for the downstream round wood market is estimated at €218 million in 2030, whereby consumers incur a welfare loss of €357 million, while producers experience a €139 million increase, due to higher wood prices. The societal impact is expected to extend to well beyond the time horizon of the analysis, and long after the invasion has stopped.Conclusions/SignificancePinewood nematode has large economic consequences for the conifer forestry industry in the EU. A change in spatial resolution affected the calculated directed losses by 24%, but did not critically affect conclusions.

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“…[Wollenweber] Behrens) is the most destructive nematode around the world (Marks & Rojancovski, 1998;Hodda & Cook, 2009), and is broadly distributed in tropical and subtropical regions. As the distribution of seed expands, the distribution of G. rostochiensis could expands as well.…”

Section: Potato Cyst Nematode (Globodera Rostochiensismentioning

confidence: 99%

THE EFFECT OF TEMPERATURE, POTATO VARIETIES, AND THE ORIGIN OF CYST ON THE REPRODUCTIVE BIOLOGY OF Globodera rostochiensis (PENGARUH SUHU, VARIETAS KENTANG, DAN ASAL SISTA TERHADAP BIOLOGI REPRODUKSI Globodera rostochiensis)

Nurjanah¹,

Trisyono

Indarti

et al. 2017

JPTI

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Potato cyst nematode (Globodera rostochiensis [Wollenweber] Behrens) is a nematode species of worldwide regulatory concern. This nematode caused serious economic of potato losses in Indonesia. This research studied by factorial designed to evaluated the effect of temperature (10, 20, and 30ºC), potato varieties (`Granola´, `Margahayu´, and Cipanas´), and origin of cyst (West, Central, and East Java) on reproductive biology of G. rostochiensis in the growth chamber. The research was conducted by observed of produced the new cyst number, reproduction fitness, survival, fecundity, and multiplication of G. rostochiensis. The result showed that all of the potato varieties were infected by G. rostochiensis when they were grown at the temperature ranging of 20 and 30ºC but not at 10ºC. The optimum temperature for maximum number of cysts with the highest reproduction factor, survival, fecundity and multiplication rate for all populations was 20ºC. The origin of cyst did not have any effect on the reproductive rate. The temperature of 20ºC provided is best environment for the life of G. rostochiensis on Granola.

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Economic Impact from Unrestricted Spread of Potato Cyst Nematodes in Australia

Cited by 38 publications

References 44 publications

The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers

The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers

Framework for Modelling Economic Impacts of Invasive Species, Applied to Pine Wood Nematode in Europe

THE EFFECT OF TEMPERATURE, POTATO VARIETIES, AND THE ORIGIN OF CYST ON THE REPRODUCTIVE BIOLOGY OF Globodera rostochiensis (PENGARUH SUHU, VARIETAS KENTANG, DAN ASAL SISTA TERHADAP BIOLOGI REPRODUKSI Globodera rostochiensis)

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