caa a22 4500 477100392 CHVBK 20180405111539.0 cr unu---uuuuu 170330e19961001xx s 000 0 eng 10.1007/BF00208316 doi (NATIONALLICENCE)springer-10.1007/BF00208316 Falsiflora and anantha control early stages of floral meristem development in tomato ( Lycopersicon esculentum Mill.) [Elektronische Daten] [Keith Allen, Ian Sussex] The shoot apical meristem of tomato gives rise to a relatively fixed number of vegetative nodes before converting to an inflorescence meristem. Growth of the plant after inflorescence initiation is continued by a sympodial bud in the axil of the last-formed leaf. We show that the inflorescence meristem produces flower meristems not as lateral primordia, but by a series of nearly equal divisions, each time yielding a flower meristem and an inflorescence meristem. We describe two mutants, falsiflora and anantha, that block the acquisition of floral meristem identity by the products of the inflorescence meristem. In both mutants the vegetative meristem successfully converts to an inflorescence meristem (although this is delayed in falsiflora), and the inflorescence meristem functions morphologically the same as in the wild type. But determinate flower meristems are replaced by indeterminate proliferous shoots with a combination of inflorescence and vegetative characters. The falsiflora inflorescence is very leafy with substantial internode elongation and may easily reach a meter in length. The anantha inflorescence is reminiscent of the common cauliflower variant of Brassica (B. oleracea var. botrytis). Leaves within the anantha inflorescence, although still present, are highly suppressed. Normal flowers never form, but occasionally some aberrant floral structures may be found in very large anantha inflorescences. Based on phenotypic comparison, falsiflora appears to be blocked at an earlier stage than is anantha. Consistent with this, falsiflora is completely epistatic to anantha. We discuss our findings in the context of characterized meristem identity mutants in other species, and of partial flowering experiments indicating that the vegetative to floral transition is, at least in many species, a series of small steps rather than an all or none transformation. Springer-Verlag, 1996 Floral meristem nationallicence Inflorescence meristem nationallicence Lycopersicon (floral mutants) nationallicence Mutant tomato ( anantha , falsiflora ) nationallicence Allen Keith Department of Plant Biology, University of California, 94720, Berkeley, CA, USA aut Sussex Ian Department of Plant Biology, University of California, 94720, Berkeley, CA, USA aut Planta Springer-Verlag 200/2(1996-10-01), 254-264 0032-0935 200:2<254 1996 200 425 https://doi.org/10.1007/BF00208316 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00208316 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Allen Keith Department of Plant Biology, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Sussex Ian Department of Plant Biology, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 773 0- Planta Springer-Verlag 200/2(1996-10-01), 254-264 0032-0935 200:2<254 1996 200 425 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer