Genetic diversity of the myrtle rust pathogen (Austropuccinia psidii) in the Americas and Hawaii: Global implications for invasive threat assessments

被引：34

作者：

Stewart, J. E. ^{[1
]}

Ross-Davis, A. L. ^{[2
,21
]}

Graca, R. N. ^{[3
]}

Alfenas, A. C. ^{[4
]}

Peever, T. L. ^{[5
]}

Hanna, J. W. ^{[2
]}

Uchida, J. Y. ^{[6
]}

Hauff, R. D. ^{[7
]}

Kadooka, C. Y. ^{[6
]}

Kim, M. -S. ^{[8
]}

Cannon, P. G. ^{[9
]}

Namba, S. ^{[10
]}

Simeto, S. ^{[11
]}

Perez, C. A. ^{[12
]}

Rayamajhi, M. B. ^{[13
]}

Lodge, D. J. ^{[14
]}

Arguedas, M. ^{[15
]}

Medel-Ortiz, R. ^{[16
]}

Lopez-Ramirez, M. A. ^{[16
]}

Tennant, P. ^{[17
]}

Glen, M. ^{[18
]}

Machado, P. S. ^{[4
]}

McTaggart, A. R. ^{[19
,22
]}

Carnegie, A. J. ^{[20
]}

Klopfenstein, N. B. ^{[2
]}

机构：

[1] Colorado State Univ, Dept Bioagr Sci & Pest Management, Ft Collins, CO 80523 USA

[2] US Forest Serv, USDA, Rocky Mt Res Stn, Moscow Forestry Sci Lab, Moscow, ID USA

[3] FuturaGene Brasil Tecnol Ltd, Itapetininga, SP, Brazil

[4] Univ Fed Vicosa, Dept Plant Pathol, Vicosa, MG, Brazil

[5] Washington State Univ, Dept Plant Pathol, Pullman, WA 99164 USA

[6] Univ Hawaii Manoa, Dept Plant & Environm Protect Sci, Honolulu, HI 96822 USA

[7] Dept Lands & Nat Resources, Div Forestry & Wildlife, Honolulu, HI USA

[8] Kookmin Univ, Dept Forestry Environm & Syst, Seoul, South Korea

[9] US Forest Serv, USDA, Forest Hlth Protect Reg 5, Vallejo, CA USA

[10] Univ Tokyo, Dept Agr & Environm Biol, Tokyo, Japan

[11] INIA, Natl Forestry Res Program, Tacuarembo, Uruguay

[12] Univ Republ, Fac Agron, Dept Protecc Vegetal, EEMAC, Paysandu, Uruguay

[13] ARS, USDA, Invas Plant Res Lab, Ft Lauderdale, FL USA

[14] US Forest Serv, USDA, Northern Res Stn, Luquillo, PR USA

[15] Inst Tecnol Costa Rica, Escuela Ingn Forestal, Cartago, Costa Rica

[16] Univ Veracruzana, Inst Invest Forestales, Xalapa, Veracruz, Mexico

[17] Univ West Indies, Ctr Biotechnol, Mona, Jamaica

[18] Univ Tasmania, Tasmanian Inst Agr, Hobart, Tas, Australia

[19] Univ Queensland, Queensland Alliance Agr & Food Innovat, Brisbane, Qld, Australia

[20] NSW Forest Sci, NSW Dept Primary Ind, Parramatta, NSW, Australia

[21] Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA

[22] Univ Pretoria, FABI, Dept Plant & Soil Sci, Pretoria, South Africa

来源：

FOREST PATHOLOGY | 2018年 / 48卷 / 01期

关键词：

Eucalyptus; other; rust; PUCCINIA-PSIDII; EUCALYPTUS RUST; GUAVA RUST; 1ST REPORT; MELALEUCA-QUINQUENERVIA; NATIVE MYRTACEAE; DISEASE; ECOSYSTEMS; RESISTANCE; GENOTYPE;

D O I：

10.1111/efp.12378

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Since the myrtle rust pathogen (Austropuccinia psidii) was first reported (as Puccinia psidii) in Brazil on guava (Psidium guajava) in 1884, it has been found infecting diverse myrtaceous species. Because A.psidii has recently spread rapidly worldwide with an extensive host range, genetic and genotypic diversities were evaluated within and among A.psidii populations in its putative native range and other areas of myrtle rust emergence in the Americas and Hawaii. Microsatellite markers revealed several unique multilocus genotypes (MLGs), which grouped isolates into nine distinct genetic clusters [C1-C9 comprising C1: from diverse hosts from Costa Rica, Jamaica, Mexico, Puerto Rico, and USA-Hawaii, and USA-California; C2: from eucalypts (Eucalyptus spp.) in Brazil/Uruguay and rose apple (Syzygium jambos) in Brazil; C3: from eucalypts in Brazil; C4: from diverse hosts in USA-Florida; C5: from Java plum (Syzygium cumini) in Brazil; C6: from guava and Brazilian guava (Psidium guineense) in Brazil; C7: from pitanga (Eugenia uniflora) in Brazil; C8: from allspice (Pimenta dioica) in Jamaica and sweet flower (Myrrhinium atropurpureum) in Uruguay; C9: from jabuticaba (Myrciaria cauliflora) in Brazil]. The C1 cluster, which included a single MLG infecting diverse host in many geographic regions, and the closely related C4 cluster are considered as a Pandemic biotype, associated with myrtle rust emergence in Central America, the Caribbean, USA-Florida, USA-Hawaii, Australia, China-Hainan, New Caledonia, Indonesia and Colombia. Based on 19 bioclimatic variables and documented occurrences of A.psidii contrasted with reduced sets of specific genetic clusters (subnetworks, considered as biotypes), maximum entropy bioclimatic modelling was used to predict geographic locations with suitable climate for A.psidii which are at risk from invasion. The genetic diversity of A.psidii throughout the Americas and Hawaii demonstrates the importance of recognizing biotypes when assessing the invasive threats posed by A.psidii around the globe.

引用

页数：13

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