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Table 1 Cytological, morphological and fruit quality parameters of diploid and allotriploid donors and the induced-autopolyploid lines

From: Morphological, cytological and metabolic consequences of autopolyploidization in Hylocereus (Cactaceae) species

 

Hylocereus

Autotetraploid

Allotriploid

Autohexaploid

Parameter

monacanthus

D-27

S-75

D-2.3

Cytological parameters

    

Estimated ploidy level

2n

4n

3n

6n

Genome size (pg ±SE)

4.2 ±0.1

8.0 ±0.4*

5.9 ±0.3

13.7 ±0.1*

Stomata diameter (µm ±SE)

53.1 ±0.2

56.0 ±0.2*

63.7 ±0.3

69.0 ±0.3*

Stomata density (±SE)

13.6 ±0.3

12.6 ±0.3*

9.4 ±0.2

8.1 ±0.2*

Number of ovules (±SE)

5036 ±159

3408 ±185*

3530 ±107

3472 ±187

Pollen grain size (µm ±SE)

84.9 ±0.2

107.9 ±0.4*

97.6 ±0.6

122.7 ±0.5*

Pollen stainability (% ±SE)

97.1 ±0.2

86.6 ±1.4*

11.1 ±0.7

52.2 ±4.8*

Tetrads (% ±SE)

99.8 ±0.2

78.3 ±2.4*

74.6 ±0.4

30.3 ±3.9*

Polyads (% ±SE)

0.0 ±0.0

18.9 ±2.2*

9.0 ±2.3

61.1 ±2.7*

Triads (% ±SE)

0.0 ±0.0

2.8 ±0.7*

16.0 ±2.1

6.5 ±1.1*

Dyads (% ±SE)

0.2 ±0.2

0.0 ±0.2

0.3 ±0.2

0.7 ±0.2

Monads (% ±SE)

0.0 ±0.0

0.0 ±0.2

0.1 ±0.1

1.4 ±0.5*

Morphological parameters

    

Fruit weight (gr ±SE)

333 ±17

267 ±18*

195 ±11

89 ±14*

Peel weight (gr ±SE)

158 ±9

138 ±9

77 ±4

47 ±5*

Flesh weight (gr ±SE)

175 ±10

129 ±10*

118 ±8

42 ±9*

Flesh/Peel ratio (±SE)

1.14 ±0.05

0.95 ±0.08

1.53 ±0.06

0.85 ±0.11*

Black-coat seed number (±SE)

3263 ±201

2190 ±258*

1681 ±113

295 ±37*

Brown-coat seed number (±SE)

0

0

569 ±79

371 ±71

Black-coat seed weight (mg ±SE)

2.57 ±0.02

2.92 ±0.04*

3.86 ±0.06

2.29 ±0.05*

Seed germination (% ±SE)

89 ±1.4

81 ±2.3*

50 ±2.7

30 ±2.5*

Fruit quality parameters

    

pH (±SE)

3.59 ±0.05

3.33 ±0.06

3.36 ±0.06

2.72 ±0.04*

TSS (% ±SE)

14.1 ±0.31

13.8 ±0.10

16.2 ±0.30

13.6 ±0.30*

Water content (% ±SE)

83.51 ±0.6

84.12 ±0.3

83.46 ±0.1

84.70 ±0.1

  1. *represent statistical significance differences between each of the induced-autopolyploid line to its respective donor line. Statistical analysis was calculated according to the Student’s t-test analysis, P ≤ 0.05. TSS, total soluble solids.
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BMC Plant Biology

ISSN: 1471-2229

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