Fig. 4From: Klf8 regulates left-right asymmetric patterning through modulation of Kupffer’s vesicle morphogenesis and spaw expressionOverexpression of klf8 mRNA caused bilateral expression of Nodal signalling component genes. Injection of klf8 mRNA induced bilateral expression of spaw in the LPM (arrow) at the 18 s stage, in a dose-dependent manner (a-e). Embryos injected with klf8, but not LacZ, exhibited bilateral expression of lft1 in the diencephalon (arrowhead) and heart (asterisk; f-j), lft2 in the heart (asterisk; k-o), and pitx2 in the LPM (white arrow) (p-t) at the 19–22 s stage. Expression of ntl in the notochord is similar in wild type and embryos injected with LacZ or klf8 mRNA (u-w). A, absent; B, bilateral; L, left; R, rightBack to article page