Larger Image Fig. 2. Conserved and non-conserved expression patterns of different gene families in amphioxus and Xenopus. A–F: expression patterns of the “conserved” expressed gene family, RTNs, in Xenopus (A–D) and amphioxus (E, F) larvae. F: the higher magnification of boxed area in E. G–J: expression patterns of the “shifted” expressed gene family, NUCBs, in Xenopus (G, H) and amphioxus (I, J) larvae. K–N: expression patterns of the “expanded” expressed gene family, SAMD4s, in Xenopus (K, L) and amphioxus (M, N) larvae. Scale bars: 1 mm (A–D, G, H, K, L); 100 μm (E, I, M). Image published in: Chen Y et al. (2011) Copyright © 2011. Image reproduced with permission of the Publisher, Elsevier B. V. Gene Synonyms Species Stage(s) Tissue rtn1.L rtn1-a, rtn1-b, xrtn1, XRTN1-A, xrtn1-c, XRTN1-C.1 X. laevis Throughout NF stage 32 brain forebrain telencephalon diencephalon hindbrain spinal cord central nervous system rtn2.L xrtn2 X. laevis Throughout NF stage 32 telencephalon diencephalon midbrain hindbrain brain forebrain midbrain-hindbrain boundary spinal cord pharyngeal arch head central nervous system rtn3.L asyip, hap, nspl2, nsplii, rtn3-a, rtn3-a1, rtn3-b, xrtn3 X. laevis Throughout NF stage 32 telencephalon diencephalon midbrain hindbrain midbrain-hindbrain boundary spinal cord eye head brain forebrain central nervous system rtn4.L Nogo, rtn4-a, rtn4-b X. laevis Throughout NF stage 32 brain forebrain telencephalon diencephalon hindbrain spinal cord central nervous system nucb1.L calnuc, nuc, nucleobindin X. laevis Throughout NF stage 32 brain spinal cord cement gland central nervous system nucb2.L X. laevis Throughout NF stage 32 brain forebrain hindbrain spinal cord cement gland central nervous system samd4a.L X. laevis Throughout NF stage 32 brain diencephalon midbrain hindbrain spinal cord central nervous system samd4b.L X. laevis Throughout NF stage 32 brain hindbrain spinal cord head pharynx central nervous system Image source: Published Permanent Image Page Printer Friendly View XB-IMG-153951