Table 1

C. briggsae natural isolate origins and fecundities.

Isolate

Geographic Location

Clade

Fecundity


AF16

Ahmedabad, India

TR

144.5 (5.9)

BW287*

Beijing, China

TE

163.5 (5.7)

ED3032

Taipei, Taiwan

TR

171.8 (9.3)

ED3033

Taipei, Taiwan

TR

111.8 (8.1)

ED3034

Taipei, Taiwan

TR

110.0 (5.0)

ED3035

Taipei, Taiwan

TR

109.0 (8.0)

ED3036

Taipei, Taiwan

TR

98.0 (12.9)

ED3037

Taipei, Taiwan

TR

122.3 (9.5)

ED3083

Johannesburg, S. Africa

TR

100.0 (12.5)

ED3092

Nairobi, Kenya

KE

188.0 (3.3)

ED3101

Nairobi, Kenya

KE

205.8 (8.0)

EG4181

Utah, USA

TE

176.0 (4.3)

EG4207A

Utah, USA

TE

181.0 (4.5)

HK104

Okayama, Japan

TE

162.5 (7.6)

HK105

Sendai, Japan

TE

75.3 (7.2)

JU403

Hermanville, France

TE

105.5 (4.8)

JU439

Reykjavic, Iceland

TE

118.5 (3.3)

JU516

Marsas, France

TE

108.5 (3.7)

JU725

Chengyang, China

TR

167.5 (2.6)

JU726

Tangshuo, China

TR

122.3 (15.7)

JU793

Frechendets, France

TE

132.8 (2.1)

PB800

Ohio, USA

TE

177.5 (10.5)

PB826

Ohio, USA

TE

165.3 (3.0)

VT847

Hawaii, USA

TR

130.0 (6.2)


Strain BW287 (identified by asterisk) has historically been known as a nematode in the genus Panagrolaimus; nuclear ribosomal DNA and mtDNA sequencing carried out in the Denver lab, involving strains obtained from three different sources, agree that this isolate is instead a strain of C. briggsae. EG4207A was established from a single nematode picked from EG4207 that constituted a C. briggsae lab population initially established from many nematodes. For Clade, TE indicates the temperate intraspecific clade, TR the tropical clade and KE the Kenya clade. Fecundity shows the mean numbers of progeny produced for each isolate (four worms assayed per strain) and the S. E. M. is shown in parentheses.

Howe and Denver BMC Evolutionary Biology 2008 8:62   doi:10.1186/1471-2148-8-62

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