Table 1 Segregation distortion in various crosses using indica parents with different copy numbers of Sc-i

From: Genomic structural variation-mediated allelic suppression causes hybrid male sterility in rice

Cross ♀/♂

F1 genotype

No. plant (F2)

Segregation jj:ji:ii

% jj plant

χ 2 (1:2:1)

E5/T65

Sc-j/3xSc-i

748

3:377:368

0.4

356.3***

ZS97B/Nip

Sc-j/3xSc-i

213

7:118:88

3.3

64.1***

Nip/HHZ

Sc-j/2xSc-i

134

6:65:57

4.7

40.7***

Nip/93-11

Sc-j/2xSc-i

258

25:145:88

9.7

34.7***

Nip/02428

Sc-j/2xSc-i

172

12:95:65

7.0

34.6***

  

(RIL)

jj:ii

 

(1:1)

GLA4/Nip

Sc-j/3xSc-i

106 (F10)

1:105

0.9

102.0***

Nip/93-11

Sc-j/2xSc-i

247 (F7)

52:195

21.1

82.8***

  1. Note: The Sc-i allele variants have three (3×) or two (2×) segment copies (Fig. 1d and Supplementary Fig. 6). jj, ij, and ii indicate homozygous Sc-j, the heterozygote, and homozygous Sc-i, respectively. ***significance at P  < 0.001 for the χ 2 test. The expected normal frequencies of plants with jj genotype are 25% for F2 and 50% for RIL. All crosses with the japonica cultivars as the male or female parents produced lower transmission rates of Sc-j
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