The type species of Magnaporthe
is Magnaporthe salvinii (rice stem
rot), which is not congeneric with Magnaporthe
(Pyricularia) oryzae or grisea, based
on phylogenetic analysis, morphology, and ecological characters (for details,
see Zhang et al. Mycologia. 2011 103(6):1267-76. doi: 10.3852/11-022). Therefore, a change of genus name is
needed. If we follow the new
nomenclature (Melbourne Code), which considers names for sexual and asexual
morphs equally, the name for the rice blast fungus should be Pyricularia oryzae, while the name for
the stem rot is Nakataea oryzae,
because these are the older generic names. Another option is to write a proposal to conserve the genus Magnaporthe for the blast fungus.
The reasons for choosing Magnaporthe
or Pyricularia as generic name for
the blast fungus are well presented by a number of researchers (Takayuki AOKI,
JoAnne Crouch, Didier THARREAU, Jin-Rong Xu, Izumi Chuma, Jeff Oster, Yukio
TOSA, Andrew Minnis, Marc-Henri Lebrun, Lorelei Norvell, Scott Redhead, Amy
Rossman etc.) in the Discussion post (see below) and email correspondence. An early settlement of this issue will facilitate ongoing and
future studies regarding these organisms.
Therefore, I set a poll in the blogger (http://magnaporthe.blogspot.com/),
which may help better understand the preference of the user community and
taxonomists.
Please vote at
your earliest convenience and spread the word to others. The deadline is set on September, 2013.
Sincerely,
Ning
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