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Table 1 Adult feeding experiments: Induction of sex-linked recessive lethals (SLRLs) by 10Gy γ-radiation and its modulation by TP and BC in Drosophila adult males

From: Protective effects of tea polyphenols and β-carotene against γ-radiation induced mutation and oxidative stress in Drosophila melanogaster

Treatment

Brood

No: of X-Chromosomes scored

Lethals (n)

Lethals (%)

10% Sucrose (Negative Control)

I

913

1

0.110

II

837

2

0.239

III

682

1

0.147

IV

554

1

0.181

I-IV

2986

5

0.167

TP 1%

I

781

2

0.256

II

746

1

0.134

III

614

1

0.163

IV

517

0

0.000

I-IV

2658

4

0.150

BC 0.25%

I

869

1

0.115

II

684

2

0.292

III

577

0

0.000

IV

461

1

0.217

I-IV

2591

4

0.154

BC 0.5%

I

889

2

0.225

II

702

1

0.142

III

693

0

0.000

IV

415

1

0.241

I-IV

2699

4

0.148

BC 1%

I

902

2

0.222

II

819

1

0.122

III

674

1

0.148

IV

529

1

0.189

I-IV

2924

5

0.171

γ-radiation

I

752

31

4.122###

II

732

27

3.689###

III

717

15

2.092###

IV

665

12

1.805###

I-IV

2866

85

2.966 ###

γ-radiation + TP 1%

I

825

8

0.970***, ##

{76.46%}

II

782

5

0.639***

{82.67%}

III

645

5

0.775**, #

{62.95%}

IV

562

4

0.712*

{60.55%}

I-IV

2814

22

0.782 ***, ###

{73.63%}

γ-radiation + BC 0.25%

I

810

7

0.864***, ##

{79.03%}

II

711

6

0.844***, #

{77.12%}

III

512

4

0.781*, #

{62.66%}

IV

499

3

0.601*

{66.70%}

I-IV

2532

20

0.790 ***, ###

{73.36%}

γ-radiation + BC 0.5%

I

788

7

0.888***, ##

{78.45%}

II

651

5

0.768***

{79.18%}

III

582

4

0.687**

{67.16%}

IV

558

4

0.717*

{60.27%}

I-IV

2579

20

0.775 ***, ###

{73.87%}

γ-radiation + BC 1%

I

704

8

1.136***, ###

{72.44%}

II

688

7

1.017***, ##

{95.36%}

III

662

7

1.057##

{49.47%}

IV

522

4

0.766

{57.56%}

I-IV

2576

26

1.009 ***, ###

{65.98%}

  1. * p ≤ 0.10, ** p ≤ 0.05, *** p ≤ 0.01 (Compared to positive control group. i.e. γ-radiation)
  2. #p ≤ 0.10, ## p ≤ 0.05, ###p ≤ 0.01 (Compared to negative control group. i.e. sucrose control)
  3. The data in bold indicates the sum of all four broods for different test groups respectively
  4. The percentages in parentheses indicates the decrease rates in the mutation frequency of test groups as compared to positive control group