<link href="file://localhost/Users/MFukui/Library/Caches/TemporaryItems/msoclip/0clip_filelist.xml" rel="File-List" />
<style>
&lt;!--
/* Font Definitions */
@font-face
{font-family:Geneva;
panose-1:2 11 5 3 3 4 4 4 2 4;
mso-font-charset:0;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 0 0 0 1 0;}
@font-face
{font-family:&quot;ＭＳ 明朝&quot;;
panose-1:2 2 6 9 4 2 5 8 3 4;
mso-font-charset:78;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:1 0 16778247 0 131072 0;}
@font-face
{font-family:Century;
panose-1:2 4 6 4 5 5 5 2 3 4;
mso-font-charset:0;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 0 0 0 1 0;}
@font-face
{font-family:&quot;\@ＭＳ 明朝&quot;;
panose-1:2 2 6 9 4 2 5 8 3 4;
mso-font-charset:78;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:1 0 16778247 0 131072 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:&quot;&quot;;
margin:0mm;
margin-bottom:.0001pt;
text-align:justify;
text-justify:inter-ideograph;
mso-pagination:none;
font-size:12.0pt;
font-family:&quot;Times New Roman&quot;;
mso-ascii-font-family:Century;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:&quot;ＭＳ 明朝&quot;;
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:Century;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:&quot;Times New Roman&quot;;
mso-bidi-theme-font:minor-bidi;
mso-font-kerning:1.0pt;}
span.i
{mso-style-name:i;}
span.name
{mso-style-name:name;}
span.forenames
{mso-style-name:forenames;}
span.surname
{mso-style-name:surname;}
span.h5-inline
{mso-style-name:h5-inline;}
/* Page Definitions */
@page
{mso-page-border-surround-header:no;
mso-page-border-surround-footer:no;}
@page Section1
{size:612.0pt 792.0pt;
margin:99.25pt 30.0mm 30.0mm 30.0mm;
mso-header-margin:36.0pt;
mso-footer-margin:36.0pt;
mso-paper-source:0;}
div.Section1
{page:Section1;}
--&gt;
</style>
加茂野晃子さんを中心にして、オックスフォード大学動物学教室のCAVALIER-SMITHさんとFIORE-DONNOさんとともに行った共同研究の成果の一部がオンラインで公開されました（英国王立協会２国間国際共同研究事業）。<o:p></o:p>
<o:p> </o:p>
ANNA MARIA FIORE-DONNO,
AKIKO KAMONO,
EMA E. CHAO, MANABU FUKUI and THOMAS CAVALIER-SMITH.<o:p></o:p> Invalidation of Hyperamoeba by
Transferring its Species to Other Genera of Myxogastria.<o:p></o:p> Journal of Eukaryotic Microbiology<o:p></o:p>
<o:p> </o:p>
ABSTRACT. The genus Hyperamoeba
Alexeieff, 1923 was established to accommodate an aerobic amoeba exhibiting
three life stages?amoeba, flagellate, and cyst. As more species/strains were
isolated, it became increasingly evident from small subunit (SSU) gene
phylogenies and ultrastructure that Hyperamoeba is
polyphyletic and its species occupy different positions within the class
Myxogastria. To pinpoint Hyperamoeba strains within other
myxogastrid genera we aligned numerous myxogastrid sequences: whole small
subunit ribosomal (SSU or 18S rRNA) gene for 50 dark-spored (i.e. Stemonitida
and Physarida) Myxogastria (including a new "Hyperamoeba"/Didymium sequence) and a ?400-bp SSU fragment for 147 isolates assigned to 10
genera of the order Physarida. Phylogenetic analyses show unambiguously that
the type species Hyperamoeba flagellata is a Physarum (Physarum flagellatum comb. nov.)
as it nests among other Physarum species as robust sister
to Physarum didermoides. Our trees also allow the
following allocations: five Hyperamoeba strains to the
genus Stemonitis; Hyperamoeba dachnaya, Pseudodidymium
cryptomastigophorum, and three other Hyperamoeba
strains to the genus Didymium; and two further Hyperamoeba strains to the family Physaridae. We therefore
abandon the polyphyletic and redundant genus Hyperamoeba.
We discuss the implications for the ecology and evolution of Myxogastria, whose
amoeboflagellates are more widespread than previous inventories supposed, being
now found in freshwater and even marine environments.
<o:p></o:p>
※コメント投稿者のブログIDはブログ作成者のみに通知されます