Table 1 The mean relative abundance (%) of nematode genera associated with different tillage systems and depth of soil sampling.

From: Metabarcoding–approach–based profiling reveals dynamic nature of sustainable tillage practices on nematode communities in corn–soybean cropping systems

 

0–5 cm

5–20 cm

CT

MT

NT

CT

MT

NT

Bacterivores

      

Acrobeloides

1.97 ± 0.73

0.91 ± 0.25

1.89 ± 0.37

0.84 ± 0.20

0.76 ± 0.25

1.36 ± 0.45

Alaimus

2.76 ± 1.19a

0.55 ± 0.19b

0.57 ± 0.25b

0.25 ± 0.15b

0.19 ± 0.16b

0.15 ± 0.06b

Eucephalobus

12.72 ± 2.97a

11.72 ± 2.29ab

7.62 ± 1.28bc

3.21 ± 1.62 cd

2.17 ± 0.63d

1.70 ± 0.41d

Eumonhystera

0.05 ± 0.03

0.01 ± 0.01

0.21 ± 0.14

0.62 ± 0.58

0.03 ± 0.02

0.18 ± 0.09

Oscheius

0.01 ± 0.01b

5.71 ± 3.41a

1.31 ± 0.38b

0.00 ± 0.00b

0.61 ± 0.38b

0.17 ± 0.13b

Panagrolaimus

0.75 ± 0.68

0.10 ± 0.07

0.40 ± 0.19

0.02 ± 0.0

0.00 ± 0.0

0.10 ± 0.06

Plectus

0.76 ± 0.22b

2.13 ± 0.75ab

0.70 ± 0.23b

1.71 ± 0.46ab

2.78 ± 1.06ab

3.59 ± 1.16a

Rhabditis

2.70 ± 1.69b

25.47 ± 6.67a

28.65 ± 7.20ba

5.39 ± 1.71b

29.64 ± 7.15a

18.39 ± 6.14ba

Rhabditophanes

0.00 ± 0.00

1.49 ± 1.01

0.27 ± 0.21

0.00 ± 0.00

0.61 ± 0.31

0.52 ± 0.42

Diploscapter

0.02 ± 0.02

0.05 ± 0.03

0.26 ± 0.12

0.02 ± 0.02

0.00 ± 0.00

0.82 ± 0.66

Fungivores

      

Aphelenchoides

0.43 ± 0.11ab

1.26 ± 0.61a

0.19 ± 0.05b

0.50 ± 0.25ab

0.42 ± 0.15ab

0.16 ± 0.05b

Aphelenchus

2.76 ± 0.81b

1.09 ± 0.47b

9.20 ± 1.92a

1.59 ± 0.75b

2.20 ± 1.04b

4.50 ± 1.17cb

Ditylenchus

5.18 ± 1.51a

1.66 ± 0.85b

2.55 ± 0.58ab

2.94 ± 1.56ab

0.58 ± 0.21b

0.25 ± 0.11b

Paraphelenchus

0.03 ± 0.03

0.05 ± 0.04

0.06 ± 0.04

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

Herbivores

      

Basiria

2.23 ± 0.65ab

0.55 ± 0.21c

1.77 ± 0.44b

4.47 ± 1.62a

1.61 ± 0.45b

1.25 ± 0.48ab

Boleodorus

0.77 ± 0.21d

0.70 ± 0.18d

2.68 ± 0.76 cd

6.37 ± 1.46bc

10.89 ± 2.38a

8.05 ± 1.68ab

Irantylenchus

1.29 ± 0.28a

0.91 ± 0.25a

0.39 ± 0.08b

0.35 ± 0.11b

0.25 ± 0.06b

0.05 ± 0.03b

Neopsilenchus

3.62 ± 2.26a

0.37 ± 0.17b

0.07 ± 0.04b

1.41 ± 0.86ab

1.12 ± 0.34ab

0.65 ± 0.32b

Pratylenchus

7.07 ± 2.32b

1.39 ± 0.84c

2.26 ± 1.54c

42.59 ± 4.46a

13.14 ± 3.84b

7.83 ± 2.65bb

Psilenchus

0.15 ± 0.08

0.34 ± 0.10

0.35 ± 0.08

0.42 ± 0.14

0.18 ± 0.10

0.31 ± 0.13

Predators

      

Aporcella

1.82 ± 1.24

0.31 ± 0.21

0.08 ± 0.08

3.93 ± 2.04

4.95 ± 2.40

5.67 ± 5.14

Mesodorylaimus

3.61 ± 2.28

2.36 ± 1.22

2.93 ± 1.17

0.13 ± 0.07

0.27 ± 0.17

1.50 ± 0.39

Mylonchulus

0.19 ± 0.06b

0.05 ± 0.02b

0.38 ± 0.14b

0.58 ± 0.38ab

0.133 ± 0.09b

2.81 ± 1.87a

Oxydirus

0.08 ± 0.05b

0.37 ± 0.18b

0.45 ± 0.17b

0.63 ± 0.25b

4.16 ± 2.23a

2.21 ± 0.51ab

Prionchulus

4.45 ± 0.98

1.89 ± 1.26

0.46 ± 0.33

0.09 ± 0.09

1.75 ± 1.46

0.00 ± 0.00

Pristionchus

0.04 ± 0.04b

9.71 ± 5.44a

0.12 ± 0.12b

0.00 ± 0.00b

1.63 ± 1.02b

0.01 ± 0.01b

  1. The relative abundance of nematodes genera < 1% and identification at family level were excluded from the list. The values are mean ± standard error. Same letters are not statistically significant at P < 0.05 according to Tukey–Kramer test. CT = conventional tillage, MT = minimum tillage, NT = occasional tillage within no-tillage.
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