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Articles

VEGETATIVE COMPATIBILITY GROUPINGS AMONG ISOLATES OF FUSARIUM OXYSPORUM AND F. MONILIFORME COLONIZING ASPARAGUS TISSUES

Article number
271_51
Pages
363 – 370
Language
Abstract
Over 100 isolates of Fusarium oxysporum (Schlecht) emend.
Snyd. & Hans. and more than 200 isolates of F. moniliforme (Sheld.) emend.
Snyd. & Hans. were obtained from field grown asparagus tissue in Michigan and Connecticut, or from global collections.
All isolates were virulent on asparagus seedlings.
Isolates were placed in vegetative compatibility groups (VCGs) by demonstrating heterokaryosis between isolates of the same species.
Heterokaryosis was verified by pairing nitrate non-utilizing (nit) mutants from two different isolates on a nitrate medium.
Isolates of F. oxysporum were placed into 43 VCGs with no correlation between VCG and location.
The largest VCG of F. oxysporum contained strains from Taiwan, Washington, USA and Michigan USA. At present over 20 VCGs of F. moniliforme have been identified among isolates colonizing asparagus.
Six VCGs are recovered more frequently than others.
These findings indicate that virulence on asparagus may be a common trait among genetically distinct populations of F. moniliforme and F. oxysporum.

Publication
Authors
W.H. Elmer, J.A. LaMondia, C.T. Stephens
Keywords
Full text
Online Articles (71)
J.H. van den Broek | P.H. Boonen
K. C. Sink | T. Boll | M. Volokita | C. T. Stephens | Wade H. Elmer
J.Tj.K. Poll | C.F.G. Kramer | G. van Kruistum
D.C. Sanders | C.A. Prince | P.P. David | M.R. McMurtry
B.B. Madalageri | P.R. Dharmatti | M.B. Madalageri | P.H. Ramanjinigowd
A. Krarup | C. Krarup
Tracy L. Wacker | Gene R. Safir | S. N. Stephenson
A. Bertaccini | L. Giunchedi | C. Poggi Pollini
T.A. Evans | R.M. DeVries | T.L. Wacker | C.T. Stephens
Tracy L. Wacker | Gene R. Safir | C. T. Stephens
M. Bracale | M.G. Galli | C. Longo | G. Marziani Longo | G. Rossi | C. Soave | B. Campion | A. Falavigna
A.R. Hughes | M.A. Nichols | D.J. Woolley