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Table 1 Results of molecular cloning for the environmental DNA from five sites

From: Phylogenetic positions of “pico-sized” radiolarians from middle layer waters of the tropical Pacific

Site

Depth (m)

CTD information

Volume of filtered seawater (L)

DNA (ng/μl)

PCR

Clone number

Spumellarian clones

A

1000

 

5

A

2.6

  

5

B

183.4

  

A

400

 

5

A

47.0

  

5

B

56.5

  

A

120

Chlorophyll max

5

A

77.9

+

0

 

5

B

48.3

  

C

750

 

5

A

94.0

  

5

B

197.0

  

C

400

 

5

A

113.8

+

5

3

5

B

96.1

  

C

150

 

5

A

79.7

+

0

 

5

B

57.0

  

C

100

Chlorophyll max

5

A

64.3

+

0

 

5

B

100.8

  

D

400

 

5

A

50.8

  

5

B

22

  

D

250

 

5

A

58.6

+

11

2

5

B

15.8

+

18

1

D

120

 

5

A

78.4

+

0

 

5

B

23.7

  

D

90

Chlorophyll max

5

A

39.9

+

7

0

5

B

33

+

8

0

E

400

 

5

A

74.0

  

5

B

31.5

  

E

150

 

5

A

62.8

  

5

B

18.0

  

E

105

 

5

A

47.0

+

0

 

5

B

30.4

  

E

70

Chlorophyll max

5

A

53.1

  

5

B

39.5

  

F

400

 

5

A

5.6

  

5

B

15.6

  

F

200

 

5

A

89.1

  

5

B

60.6

  

F

130

Chlorophyll max

5

A

93.9

  

5

B

23.4

  
  1. Site A: Sep 20, 2010, 10:30 PM, N 14′ 00″, W 162′ 05″, depth 5662 m; site C: Sep 22, 2010, 10:30 PM, N 07′ 09″, W 166′ 33″, depth 4933 m; site D: Sep 23, 2010, 9:00 PM, N 2′ 42″, W 165′ 33″, Depth 5346 m; site E: Sep 29, 2010, 8:14 PM, N 05′ 40″, W 164′ 13″, Depth 4874 m; site F: Oct 9, 2010, 9:00 PM, N 16′ 492″, W 172′ 30″; Depth 5299 m
  2. CTD is an oceanography instrument used to determine the conductivity, temperature, and depth of the ocean; A and B represent the following fractions: 42 μm > A > 5 μm, 5 μm > B > 0.2 μm. The value “+” in PCR column means a positive result with spumellarian-specific primers. Clone column means the number of M13-primer, PCR-positive white colonies. The value in spumellarian clones means the number of spumellarian clones that were confirmed by sequencing