Genetic relationships among genetically distinct forms of Melampsora larici-epitea and related species based on AFLP data

Sammanfattning

Amplified Fragment Length Polymorphism (AFLP) was used to study genetic relationship among leaf rust fungi (Melampsora spp.) occurring on Salix species in short-rotation coppice. Special interest was paid to a newly identified rust fungus found on S. viminalis in southern Sweden, morphologically similar to M. larici-epitea but with a distinct DNA profile. Genetic distances among 40 Melampsora isolates collected from S. viminalis, S. dasyclados, S. viminalis x dasyclados, S. daphnoides, S. acutifolia and M. larici-populina were calculated based on 101 AFLP markers. Neighbour-joining analysis revealed the presence of six clusters, which corresponded exactly to predefined groups, namely three formae speciales of M. larici-epitea, a stem-infecting form of Melampsora on S. viminalis, the newly identified Melampsora on S. viminalis and a group consisting of two isolates from the poplar rust M. larici-populina. All six clusters were well supported by bootstrap analysis (84 to 100% support). The newly identified Melampsora on S. viminalis was indicated to be genetically separated from M. larici-epitea as well as from the stem-infecting form of Melampsora.

Publicerad i

Forest Pathology
2002, Volym: 32, nummer: 6, sidor: 379-386
Utgivare: BLACKWELL VERLAG GMBH

SLU författare

• Samils, Berit

  • Sveriges lantbruksuniversitet, Sveriges lantbruksuniversitet
    

• Lagercrantz, Ulf

  • Sveriges lantbruksuniversitet, Sveriges lantbruksuniversitet
    

• Gullberg, Urban

  • Sveriges lantbruksuniversitet, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Agricultural Science
Forest Science
Genetics


Publikationens identifierare

DOI: https://doi.org/10.1046/j.1439-0329.2002.00298.x

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/43538