کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6287819 | 1299993 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The genetic landscape of Ceratocystis albifundus populations in South Africa reveals a recent fungal introduction event
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The genetic landscape of Ceratocystis albifundus populations in South Africa reveals a recent fungal introduction event The genetic landscape of Ceratocystis albifundus populations in South Africa reveals a recent fungal introduction event](/preview/png/6287819.png)
چکیده انگلیسی
Geographical range expansion or host shifts is amongst the various evolutionary forces that underlie numerous emerging diseases caused by fungal pathogens. In this regard, Ceratocystis albifundus, the causal agent of a serious wilt disease of Acacia mearnsii trees in Africa, was recently identified killing cultivated Protea cynaroides in the Western Cape (WC) Province of South Africa. Protea cynaroides is an important native plant in the area and a key component of the Cape Floristic Region. The appearance of this new disease outbreak, together with isolates of C. albifundus from natural ecosystems as well as plantations of nonnative trees, provided an opportunity to consider questions relating to the possible origin and movement of the pathogen in South Africa. Ten microsatellite markers were used to determine the genetic diversity, population structure, and possible gene flow in a collection of 193 C. albifundus isolates. All populations, other than those from the WC, showed high levels of genetic diversity. An intermediate level of gene flow was found amongst populations of the pathogen. The results suggest that a limited number of individuals have recently been introduced into the WC, resulting in a novel disease problem in the area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fungal Biology - Volume 120, Issue 5, May 2016, Pages 690-700
Journal: Fungal Biology - Volume 120, Issue 5, May 2016, Pages 690-700
نویسندگان
Dong-Hyeon Lee, Jolanda Roux, Brenda D. Wingfield, Irene Barnes, Lizel Mostert, Michael J. Wingfield,