Genetic diversity of populations of Monilinia fructicola (Fungi, Ascomycota, Helotiales) from China.
The genetic variation among 128 isolates of Monilinia fructicola (Fungi, Ascomycota, Helotiales) from China was analyzed using Inter-Simple Sequence Repeat (ISSR) markers and compared with those of samples from California, USA and New Zealand. A total of 72 reproducible DNA fragments were scored, of which 87.5% (63/72) were polymorphic. The Nei's gene diversity and Shannon's diversity indices of three Chinese regional populations were very similar to that from California. However, several differences were observed among geographic populations of M. fructicola from both within China and between China and California. The analysis of molecular variance (AMOVA) of isolates from different geographic locations suggested that most of the observed genetic variation was found within populations. Results of this study are inconsistent with the hypothesis that the Chinese populations of M. fructicola were derived from a single or few recent migrants from other countries. Instead, our results suggest that M. fructicola has been in China long before its first official recording in 2003.
Fan
Jin-Yan
JY
Department of Plant Pathology, China Agricultural University, Beijing 100193, China.
Guo
Li-Yun
LY
Xu
Jian-Ping
JP
Luo
Yong
Y
Michailides
Themis J
TJ
D000483:Alleles; D001203:Ascomycota / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D002681:China; D016000:Cluster Analysis; D016172:DNA Fingerprinting; D004271:DNA, Fungal / Q000235:genetics*; D014644:Genetic Variation; D005838:Genotype; D016533:Mycological Typing Techniques; D010935:Plant Diseases / Q000382:microbiology*; D010944:Plants / Q000382:microbiology*; D012091:Repetitive Sequences, Nucleic Acid
D004271:DNA, Fungal