Expression Pattern of Homologues of Floral Meristem Identity Genes LFY and AP1 during Flower Development in Apple

By N. Kotoda, M. Wada, S. Komori, S. Kidou, K. Abe, T. Masuda, J. Soejima. 2000

99 citations recorded by the source corpus.

Two apple (Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf.) homologous fragments of FLO/LFY and SQUA/AP1 (AFL and MdAP1, respectively) were analyzed to determine the relationship between floral bud formation and floral gene expression in 'Jonathan' apple. The AFL gene was expressed in reproductive and vegetative organs. By contrast, the MdAP1 gene, identified as MdMADS5, which is classified into the AP1 group, was expressed specifically in sepals concurrent with sepal formation. Based on these results, AFL may be involved in floral induction to a greater degree than MdAP1 since AFL transcription increased ≈2 months earlier than MdAP1. Characterization of AFL and MdAP1 should advance the understanding of the processes of floral initiation and flower development in woody plants, especially in fruit trees like apple. (AFL and MdAP1) and the relation between expression patterns of AFL and MdAP1. Furthermore, the morphological changes of apical meristems during flower development in apple were studied in detail.

Subfields: Ecology, Evolution, Behavior and Systematics, Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/d74724dfea61e49fbe769841dd6447df07b13217

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology, Evolution, Behavior and Systematics

1. L. Walling

In Molecular Biology

1. M. Hanke
2. L. Walling
3. A. Peil

In Plant Science

1. M. Hanke
2. L. Walling

Citations in the corpus

• Overexpression of BpMADS4 from silver birch (Betula pendula Roth.) induces early‐flowering in apple (Malus × domestica Borkh.) (2007, background): “In apple, flower development usually begins with the transition from vegetative to reproductive growth in late June of the previous year followed by floral bud formation in the middle of July, doming of the apical meristem in the middle of September and the formation of different flower organ primor”
• Isolation of LEAFY and TERMINAL FLOWER 1 homologues from six fruit tree species in the subfamily Maloideae of the Rosaceae (2005, methodology): “Several flowering-related genes have been cloned from grapevine (Vitis vinifera) (Carmona et al. 2002; Boss et al. 2001), kiwifruit (Actinidia deliciosa) (Walton et al. 2001), and apple (Malus · domestica) (Kotoda et al. 2000, 2002; Wada et al. 2002; Sung et al. 1999, 2000; Jeong et al. 1999).”
• No Flower no Fruit - Genetic Potentials to Trigger Flowering in Fruit Trees (2007, background): “According to this report, MdTFL1 is possibly involved in the regulation of flower induction from late June to late July since this period is thought to be critical for the determination of meristem identity in apple (Hanke 1981; Buban and Faust 1982; Kotoda et al. 2000; Foster et al. 2003).”
• Isolation and Characterization of LEAFY and APETALA1 Homologues from Citrus sinensis L. Osbeck `Washington' (2004, background): “Citrus sinensis is a subtropical perennial tree crop with traits that are unlike many other perennial trees studied (Kotoda et al., 2000; Kyozuka et al., 1997; Sung et al., 1999; Walton et al., 2001) in that fl oral initiation and development occurs within a single growing season without a winter…”
• Genetics of flower initiation and development in annual and perennial plants (2006, unknown): “…been successfully isolated from several agriculturally important tree crops, including apples (Yao et al. 1999, Sung et al. 1999, Sung et al. 2000, Kotoda et al. 2000), Citrus (Pillitteri et al. 2004a, Pillitteri et al. 2004b, Endo et al. 2005), grapes (Boss et al. 2001, Boss et al. 2002, Boss et…”