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Genetic interactions of the unfinished flower development (ufd) mutant support a significant role of the tomato UFD gene in regulating floral organogenesis.
Plant Reprod. 2016 09; 29(3):227-38.PR

Abstract

KEY MESSAGE

Genetic interactions of UFD gene support its specific function during reproductive development of tomato; in this process, UFD could play a pivotal role between inflorescence architecture and flower initiation genes. Tomato (Solanum lycopersicum L.) is a major vegetable crop that also constitutes a model species for the study of plant developmental processes. To gain insight into the control of flowering and floral development, a novel tomato mutant, unfinished flower development (ufd), whose inflorescence and flowers were unable to complete their normal development was characterized using double mutant and gene expression analyses. Genetic interactions of ufd with mutations affecting inflorescence fate (uniflora, jointless and single flower truss) were additive and resulted in double mutants displaying the inflorescence structure of the non-ufd parental mutant and the flower phenotype of the ufd mutant. In addition, ufd mutation promotes an earlier inflorescence meristem termination. Taken together, both results indicated that UFD is not involved in the maintenance of inflorescence meristem identity, although it could participate in the regulatory system that modulates the rate of meristem maturation. Regarding the floral meristem identity, the falsiflora mutation was epistatic to the ufd mutation even though FALSIFLORA was upregulated in ufd inflorescences. In terms of floral organ identity, the ufd mutation was epistatic to macrocalyx, and MACROCALYX expression was differently regulated depending on the inflorescence developmental stage. These results suggest that the UFD gene may play a pivotal role between the genes required for flowering initiation and inflorescence development (such as UNIFLORA, FALSIFLORA, JOINTLESS and SINGLE FLOWER TRUSS) and those required for further floral organ development such as the floral organ identity genes.

Authors+Show Affiliations

Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain.Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain. Groupe de Recherche en Physiologie végétale, Earth and Life Institute, Université catholique de Louvain, Croix du Sud 4-5 bte L7.07.13, 1348, Louvain-la-Neuve, Belgium.Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain.Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain.Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain.Departamento de Biología y Geología (Genética), Edificio CITE II-B, Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Carretera de Sacramento s/n, 04120, Almería, Spain. rlozano@ual.es.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

27295366

Citation

Poyatos-Pertíñez, Sandra, et al. "Genetic Interactions of the Unfinished Flower Development (ufd) Mutant Support a Significant Role of the Tomato UFD Gene in Regulating Floral Organogenesis." Plant Reproduction, vol. 29, no. 3, 2016, pp. 227-38.
Poyatos-Pertíñez S, Quinet M, Ortíz-Atienza A, et al. Genetic interactions of the unfinished flower development (ufd) mutant support a significant role of the tomato UFD gene in regulating floral organogenesis. Plant Reprod. 2016;29(3):227-38.
Poyatos-Pertíñez, S., Quinet, M., Ortíz-Atienza, A., Bretones, S., Yuste-Lisbona, F. J., & Lozano, R. (2016). Genetic interactions of the unfinished flower development (ufd) mutant support a significant role of the tomato UFD gene in regulating floral organogenesis. Plant Reproduction, 29(3), 227-38. https://doi.org/10.1007/s00497-016-0286-6
Poyatos-Pertíñez S, et al. Genetic Interactions of the Unfinished Flower Development (ufd) Mutant Support a Significant Role of the Tomato UFD Gene in Regulating Floral Organogenesis. Plant Reprod. 2016;29(3):227-38. PubMed PMID: 27295366.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genetic interactions of the unfinished flower development (ufd) mutant support a significant role of the tomato UFD gene in regulating floral organogenesis. AU - Poyatos-Pertíñez,Sandra, AU - Quinet,Muriel, AU - Ortíz-Atienza,Ana, AU - Bretones,Sandra, AU - Yuste-Lisbona,Fernando J, AU - Lozano,Rafael, Y1 - 2016/06/13/ PY - 2016/03/17/received PY - 2016/05/31/accepted PY - 2016/6/14/entrez PY - 2016/6/14/pubmed PY - 2017/3/23/medline KW - Flower development KW - Genetic interactions KW - Inflorescence ontogeny KW - Solanum lycopersicum KW - Unfinished flower development gene SP - 227 EP - 38 JF - Plant reproduction JO - Plant Reprod VL - 29 IS - 3 N2 - KEY MESSAGE: Genetic interactions of UFD gene support its specific function during reproductive development of tomato; in this process, UFD could play a pivotal role between inflorescence architecture and flower initiation genes. Tomato (Solanum lycopersicum L.) is a major vegetable crop that also constitutes a model species for the study of plant developmental processes. To gain insight into the control of flowering and floral development, a novel tomato mutant, unfinished flower development (ufd), whose inflorescence and flowers were unable to complete their normal development was characterized using double mutant and gene expression analyses. Genetic interactions of ufd with mutations affecting inflorescence fate (uniflora, jointless and single flower truss) were additive and resulted in double mutants displaying the inflorescence structure of the non-ufd parental mutant and the flower phenotype of the ufd mutant. In addition, ufd mutation promotes an earlier inflorescence meristem termination. Taken together, both results indicated that UFD is not involved in the maintenance of inflorescence meristem identity, although it could participate in the regulatory system that modulates the rate of meristem maturation. Regarding the floral meristem identity, the falsiflora mutation was epistatic to the ufd mutation even though FALSIFLORA was upregulated in ufd inflorescences. In terms of floral organ identity, the ufd mutation was epistatic to macrocalyx, and MACROCALYX expression was differently regulated depending on the inflorescence developmental stage. These results suggest that the UFD gene may play a pivotal role between the genes required for flowering initiation and inflorescence development (such as UNIFLORA, FALSIFLORA, JOINTLESS and SINGLE FLOWER TRUSS) and those required for further floral organ development such as the floral organ identity genes. SN - 2194-7961 UR - https://www.unboundmedicine.com/medline/citation/27295366/Genetic_interactions_of_the_unfinished_flower_development__ufd__mutant_support_a_significant_role_of_the_tomato_UFD_gene_in_regulating_floral_organogenesis_ DB - PRIME DP - Unbound Medicine ER -