Abbasi AA, Goode DK, Amir S, Grzeschik KH (2009) Evolution and functional diversification of the GLI family of transcription factors in vertebrates. Evol Bioinform Online 5:5–13
Briscoe J, Small S (2015) Morphogen rules: design principles of gradient-mediated embryo patterning. Development 142:3996–4009
Candiani S, Oliveri D, Parodi M, Bertini E, Pestarino M (2006) Expression of AmphiPOU-IV in the developing neural tube and epidermal sensory neural precursors in amphioxus supports a conserved role of class IV POU genes in the sensory cells development. Dev Genes Evol 216:623–633
Candiani S, Holland ND, Oliveri D, Parodi M, Pestarino M (2008) Expression of the amphioxus Pit-1 gene (AmphiPOU1F1/Pit-1) exclusively in the developing preoral organ, a putative homolog of the vertebrate adenohypophysis. Brain Res Bull 75:324–330
Elliott KH, Brugmann SA (2019) Sending mixed signals: Cilia-dependent signaling during development and disease. Dev Biol 447:28–41
Falkenstein KN, Vokes SA (2014) Transcriptional regulation of graded Hedgehog signaling. Semin Cell Dev Biol 33:73–80
Holland LZ, Albalat R, Azumi K, Benito-Gutierrez E, Blow MJ, Bronner-Fraser M, Brunet F, Butts T, Candiani S, Dishaw LJ, Ferrier DE, Garcia-Fernandez J, Gibson-Brown JJ, Gissi C, Godzik A, Hallbook F, Hirose D, Hosomichi K, Ikuta T, Inoko H et al (2008) The amphioxus genome illuminates vertebrate origins and cephalochordate biology. Genome Res 18:1100–1111
Hu G, Li G, Wang H, Wang Y (2017) Hedgehog participates in the establishment of left-right asymmetry during amphioxus development by controlling Cerberus expression. Development 144:4694–4703
Hu GW, Li G, Wang YQ (2021) Hedgehog signaling controls mouth opening in the amphioxus. Zool Lett 7:16
Huangfu D, Anderson KV (2006) Signaling from Smo to Ci/Gli: conservation and divergence of Hedgehog pathways from Drosophila to vertebrates. Development 133:3–14
Hui CC, Angers S (2011) Gli proteins in development and disease. Annu Rev Cell Dev Biol 27:513–537
Jiang J, Hui CC (2008) Hedgehog signaling in development and cancer. Dev Cell 15:801–812
Karlstrom RO, Tyurina OV, Kawakami A, Nishioka N, Talbot WS, Sasaki H, Schier AF (2003) Genetic analysis of zebrafish gli1 and gli2 reveals divergent requirements for gli genes in vertebrate development. Development 130:1549–1564
Ke Z, Kondrichin I, Gong Z, Korzh V (2008) Combined activity of the two Gli2 genes of zebrafish play a major role in Hedgehog signaling during zebrafish neurodevelopment. Mol Cell Neurosci 37:388–401
Knight RD, Panopoulou GD, Holland PW, Shimeld SM (2000) An amphioxus Krox gene: insights into vertebrate hindbrain evolution. Dev Genes Evol 210:518–521
Leung B, Shimeld SM (2019) Evolution of vertebrate spinal cord patterning. Dev Dyn 248:1028–1043
Li G, Shu Z, Wang Y (2013) Year-round reproduction and induced spawning of Chinese amphioxus, Branchiostoma belcheri, in laboratory. PLoS ONE 8:e75461
Li G, Feng J, Lei Y, Wang J, Wang H, Shang LK, Liu DT, Zhao H, Zhu Y, Wang YQ (2014) Mutagenesis at specific genomic loci of amphioxus Branchiostoma belcheri using TALEN method. J Genet Genom 41:215–219
Li G, Liu X, Xing C, Zhang H, Shimeld SM, Wang Y (2017) Cerberus-Nodal-Lefty-Pitx signaling cascade controls left-right asymmetry in amphioxus. Proc Natl Acad Sci USA 114:3684–3689
Litingtung Y, Chiang C (2000) Specification of ventral neuron types is mediated by an antagonistic interaction between Shh and Gli3. Nat Neurosci 3:979–985
Liu X, Li G, Feng J, Yang X, Wang YQ (2013) An efficient microinjection method for unfertilized eggs of Asian amphioxus Branchiostoma belcheri. Dev Genes Evol 223:269–278
Park HL, Bai C, Platt KA, Matise MP, Beeghly A, Hui CC, Nakashima M, Joyner AL (2000) Mouse Gli1 mutants are viable but have defects in SHH signaling in combination with a Gli2 mutation. Development 127:1593–1605
Putnam NH, Butts T, Ferrier DE, Furlong RF, Hellsten U, Kawashima T, Robinson-Rechavi M, Shoguchi E, Terry A, Yu JK, Benito-Gutierrez EL, Dubchak I, Garcia-Fernandez J, Gibson-Brown JJ, Grigoriev IV, Horton AC, de Jong PJ, Jurka J, Kapitonov VV, Kohara Y et al (2008) The amphioxus genome and the evolution of the chordate karyotype. Nature 453:1064–1071
Ren Q, Zhong Y, Huang X, Leung B, Xing C, Wang H, Hu G, Wang Y, Shimeld SM, Li G (2020) Step-wise evolution of neural patterning by Hedgehog signalling in chordates. Nat Ecol Evol 4:1247–1255
Sagner A, Briscoe J (2019) Establishing neuronal diversity in the spinal cord: a time and a place. Development 146:182154
Shimeld SM (2008) C2H2 zinc finger genes of the Gli, Zic, KLF, SP, Wilms’ tumour, Huckebein, Snail, Ovo, Spalt, Odd, Blimp-1, Fez and related gene families from Branchiostoma floridae. Dev Genes Evol 218:639–649
Shimeld SM, van den Heuvel M, Dawber R, Briscoe J (2007) An amphioxus Gli gene reveals conservation of midline patterning and the evolution of hedgehog signalling diversity in chordates. PLoS ONE 2:e864
Venkatesh TV, Holland ND, Holland LZ, Su MT, Bodmer R (1999) Sequence and developmental expression of amphioxus AmphiNk2-1: insights into the evolutionary origin of the vertebrate thyroid gland and forebrain. Dev Genes Evol 209:254–259
von Mering C, Basler K (1999) Distinct and regulated activities of human Gli proteins in Drosophila. Curr Biol 9:1319–1322
Wang H, Li G, Wang YQ (2015) Generating amphioxus Hedgehog knockout mutants and phenotype analysis. Hereditas 37:1036–1043 (in Chinese with English abstract)
Yu JK, Holland LZ (2009) Amphioxus whole-mount in situ hybridization. Cold Spring Harb Protoc 2009:pdb.prot5286.
Yuan L, Wang Y, Li G (2020) Differential expression pattern of two Brachyury genes in amphioxus embryos. Gene Expr Patterns 38:119152