NDA@SZTAKI

A novel hybrid with the nuclear background of Phytophthora alni subsp. alni exhibits a mitochondrial DNA profile characteristic of P. alni subsp. uniformis

Bakonyi, J.

Nagy, Z. Á.

Érsek, T.

AkadĂŠmiai KiadĂł

2007

info:eu-repo/date/embargoEnd/2027-06-30

QH540 Ecology / ĂśkolĂłgia

QK10 Plant physiology / nĂśvĂŠnyĂŠlettan

QL01 Systematic zoology / ĂĄllatrendszertan

Phytophthora alni
is a species hybrid that causes a destructive root and collar rot disease of alders throughout Europe. Its subspecies,
P. alni
subsp.
alni (Paa), P. alni
subsp.
uniformis (Pau)
and
P. alni
subsp.
multiformis (Pam)
can be distinguished on the basis of phenotypic and genotypic traits. In this study, we report evidence of an unusual genomic combination of two subspecies occurring in two
P. alni
isolates from Hungary. These isolates, which had previously been identified as
Paa
using hybrid-specific PCR primers and morphological traits, exhibited a mitochondrial DNA restriction pattern identical to that of
Pau.
However, RAPD patterns and isozyme profiles of nuclear genes encoding glucose-phosphate isomerase (Gpi) and malate dehydrogenase (Mdh) of the two atypical isolates were identical to those found in all
Paa
isolates. Isozyme analysis also revealed a novel allele at the putative
Mdh-1
locus in
Paa
and
Pam
isolates. The atypical
Paa
isolates have likely emerged as a result of hybridization events in the
P. alni
population between
Paa
and
Pau
.

magyar

Article

PeerReviewed

info:eu-repo/semantics/article

text

http://real.mtak.hu/66398/1/aphyt.42.2007.1.1.pdf

Bakonyi, J. and Nagy, Z. Á. and Érsek, T. (2007) A novel hybrid with the nuclear background of Phytophthora alni subsp. alni exhibits a mitochondrial DNA profile characteristic of P. alni subsp. uniformis. Acta Phytopathologica et Entomologica Hungarica, 42 (1). pp. 1-7. ISSN 0238-1249

http://real.mtak.hu/66398/

https://doi.org/10.1556/APhyt.42.2007.1.1

info:eu-repo/semantics/embargoedAccess