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Table 1 Distribution of tRNA isotypes in the chloroplast genome of the monocot plants

From: Genomic and evolutionary aspects of chloroplast tRNA in monocot plants

tRNA isotypes

No. of tRNAs

O. nivara

O. sativa

S. officinarum

S. bicolor

T. aestivum

Z. mays

Alanine

2

2

2

0

2

2

Glycine

2

1

2

1

2

2

Proline

1

1

1

1

1

1

Threonine

2

2

2

1

2

3

Valine

3

2

3

2

3

3

Serine

3

3

3

3

3

3

Arginine

3

3

3

3

3

3

Leucine

4

4

4

3

4

4

Phenylalanine

1

1

1

1

1

1

Asparagine

2

2

1

2

2

2

Lysine

1

0

1

0

1

1

Aspartate

1

1

1

1

1

1

Glutamate

1

1

1

1

1

1

Histidine

2

2

2

2

2

2

Glutamine

1

1

1

1

1

1

Isoleucine

4

4

4

4

4

4

Methionine

2

2

2

2

3

2

Tyrosine

1

1

1

1

1

1

Cysteine

1

1

1

1

1

1

Tryptophan

1

1

1

1

1

1

Selenocysteine

0

0

0

0

0

0

Suppressor

0

0

0

0

0

0

Total

38

35

37

31

39

39