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Fig. 1 | BMC Genomics

Fig. 1

From: The slowdown of Y chromosome expansion in dioecious Silene latifolia due to DNA loss and male-specific silencing of retrotransposons

Fig. 1

Genome size and composition of Silene latifolia ecotypes. a Genome sizes of S. latifolia male and female genome from eight distinct ecotypes measured by flow-cytometry. Genome size varies from 5.90 pg (LIB) to 6.31 pg (LAR) in males and 5.69 pg (BYS) to 6.09 pg (LAR) in females. Error bars represent SEM. b Difference in genome size between sexes caused by Y chromosome. Difference was calculated using a formula: (M-F)/F, where M corresponds to male genome size and F to female genome size. It varies between 2.24% (WAL) and 4.32% (BYS). Black line represents linear regression line of plotted data. Grey area displays 95% confidence interval. c Correlation between abundance of repeat families and genome size of both sexes in S. latifolia. Correlation coefficient represents Pearson correlation coefficient, n (number of samples) = 7, degrees of freedom = 5. d Correlation between abundance of main LTR retrotransposon subfamilies and genome size of both sexes in S. latifolia. Correlation coefficient represents Pearson correlation coefficient, n (number of samples) = 7, degrees of freedom = 5. e Detailed contribution (copy number vs. genome size) of main LTR retrotransposons to genome size in both sexes. Dashed lines correspond to linear regression between female genome size and element’s copy number (red), and male genome size and element’s copy number (blue). R2 represents coefficient of determination (square of the Pearson correlation coefficient), n (number of samples) = 7, degrees of freedom = 5

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