The role of the monopteros gene in organising the basal body region of the Arabidopsis embryo

Development (Cambridge) - Tập 118 Số 2 - Trang 575-587 - 1993
Thomas Berleth1, Gerd Jürgens1
1Institut für Genetik und Mikrobiologie, Lehrstuhl für Genetik, Universität München, Maria-Ward-Str. 1a, D-8000 München 19, Federal Republic of Germany

Tóm tắt

ABSTRACT The monopteros (mp) gene contributes to apical-basal pattern formation in the Arabidopsis embryo. mp mutant seedlings lack basal body structures such as hypocotyl, radicle and root meristem, and this pattern deletion has been traced back to alterations in the octant-stage embryo. Cells of the embryo proper and the uppermost cell of the suspensor fail to establish division patterns that would normally generate the basal body structures. The resulting absence of a morphological axis seems to be responsible for another phenotypic trait of mp seedlings, variable positioning of cotyledons. This relationship is suggested by weak mp seedling phenotypes in which the presence of a short hypocotyl is correlated with normal arrangement of cotyledons. Root formation has been induced in mp seedlings grown in tissue culture. This result supports the notion that the mp gene is required for organising the basal body region, rather than for making the root, in the developing embryo.

Từ khóa


Tài liệu tham khảo

Chang, 1988, Restriction fragment length polymorphism linkage map for Arabidopsis thaliana, Proc. Natl. Acad. Sci. USA, 85, 6856, 10.1073/pnas.85.18.6856

Clark, 1991, Isolation and characterization of 51 embryo-specific mutations of maize, Plant Cell, 3, 935, 10.2307/3869156

Feldman, 1976, The de novo origin of the quiescent center in regenerating root apices of Zea mays, Planta, 128, 207, 10.1007/BF00393230

Feldman, 1976, The isolation and culture in vitro of the quiescent center of Zea mays. Am, J. Bot, 63, 345, 10.1002/j.1537-2197.1976.tb11821.x

Ingham, 1988, The molecular genetics of embryonic pattern formation in Drosophila, Nature, 335, 25, 10.1038/335025a0

Johri, 1984, Embryology of Angiosperms. Berlin: Springer, 10.1007/978-3-642-69302-1

Jürgens, 1993, Arabidopsis. In: A Colour Atlas of Developing Embryos

Jürgens, 1991, Genetic analysis of pattern formation in the Arabidopsis embryo, Development, 91.1, 27, 10.1242/dev.113.Supplement_1.27

Koornneef, 1990, Linkage map of Arabidopsis thaliana. In: Genetic Maps, 5th Edition (Ed. S..J. O’Brien), 6

Koornneef, 1983, Linkage map of Arabidopsis thaliana, J. Hered, 74, 265, 10.1093/oxfordjournals.jhered.a109781

Mansfield, 1991, Early embryogenesis in Arabidopsis thaliana. II. The developing embryo, Can. J. Bot, 69, 461476

Mayer, 1991, Mutations affecting body organization in the Arabidopsis embryo, Nature, 353, 402, 10.1038/353402a0

Mayer, 1993, Apical-basal pattern formation in the Arabidopsis embryo: studies on the role of the gnom gene, Development, 117, 149, 10.1242/dev.117.1.149

Meinke, 1991, Perspectives on genetic analysis of plant embryogenesis, Plant Cell, 3, 857, 10.2307/3869150

Murashige, 1962, A revised medium for rapid growth and bioassays with tobacco tissue culture, Physiol Plant, 15, 493, 10.1111/j.1399-3054.1962.tb08052.x

Nam, 1989, Restriction fragment length polymorphism linkage map of Arabidopsis thaliana, Plant Cell, 1, 699705, 10.2307/3868960

Rutishauser, 1969, Embryologie und Fortpflanzungsbiologie der Angiospermen, 10.1007/978-3-7091-8222-2

Schiavone, 1991, Regeneration of the root pole in surgically transected carrot embryos occurs by position-dependent, proximodistal replacement of missing tissues, Development, 113, 13051313, 10.1242/dev.113.4.1305

Schnabel, 1991, Early determinative events in Caenorhabditis elegans, Curr. Opin. Genet. Dev, 1, 179, 10.1016/S0959-437X(05)80067-X

Schulz, 1968, Capsella embryogenesis: The egg, zygote, and young embryo, Am. J. Bot, 55, 807, 10.1002/j.1537-2197.1968.tb07438.x

Sheridan, 1988, Maize developmental genetics: genes of morphogenesis, Annu. Rev. Genet, 22, 353, 10.1146/annurev.ge.22.120188.002033

Smith, 1970, In vitro development of the isolated shoot apical meristem of angiosperms, Amer. J. Bot, 57, 562, 10.1002/j.1537-2197.1970.tb09849.x

Spurr, 1969, A low-viscosity epoxy resin embedding medium for electron microscopy, J. Ultrastruct. Res, 26, 31, 10.1016/S0022-5320(69)90033-1

Steeves, 1989, Patterns in Plant Development. 2nd edition. Cambridge: Cambridge University Press, 10.1017/CBO9780511626227

Tykarska, 1976, Rape embryogenesis. I. The proembryo development, Acta Soc. Bot. Pol, 45, 3, 10.5586/4955

Tykarska, 1979, Rape embryogenesis. II. Development of the embryo proper, Acta Soc. Bot. Pol, 48, 391, 10.5586/asbp.1979.033

Vandendries, 1909, Contribution à lhistoire du développement des crucifères, Cellule, 25, 412

Weiland, 1972, In-vitro-Kultur der Wurzeln von letalen fusca-Mutanten von Arabidopsis thaliana, Kulturpflanze, 20, 151164, 10.1007/BF02095457