Journal
MOLECULAR ECOLOGY
Volume 11, Issue 3, Pages 355-364Publisher
BLACKWELL PUBLISHING LTD
DOI: 10.1046/j.0962-1083.2001.01456.x
Keywords
AFLP; clonal lineages; endophytes; Epichloe festucae; Festuca rubra; grasslands
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Plants of red fescue (Festuca rubra), a commercially important turf grass, are infected by the fungal endophyte Epichloe festucae in semiarid natural grasslands, known as dehesas, in western Spain. We used amplified fragment length polymorphism (AFLP) markers to analyse the genetic polymorphism existing in two natural populations of Epichloe festucae. Linkage disequilibrium and the presence of clonal lineages indicated that nonrecombinant asexual reproduction predominates in both populations. However, most genetic variation detected was found to occur within populations, with only a moderate amount of genetic differentiation between populations (F-ST: 0.197). Overall, the study suggests that dehesa grasslands are useful reservoirs of Epichloe festucae endophytes, and provides information on population structure which is relevant to design sampling strategies.
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