ArticleAnnals of botany2010
Cell cycle arrest characterizes the transition from a bisexual floral bud to a unisexual flower in Phoenix dactylifera.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 43 citations in OpenAlex.
- Spectroscopic and Molecular Methods to Differentiate Gender in Immature Date Palm (Plants (Basel, Switzerland) · 2021Article
- Evidence of Recombination Suppression Blocks on the Y Chromosome of Date Palm (Frontiers in plant science · 2021Article
- Comparative development of staminate and pistillate flowers in the dioecious cactus Opuntia robusta.Plant reproduction · 2019Article
- Genus-wide sequencing supports a two-locus model for sex-determination in Phoenix.Nature communications · 2018Article
- De novo sequencing and comparative transcriptome analysis of the male and hermaphroditic flowers provide insights into the regulation of flower formation in andromonoecious taihangia rupestris.BMC plant biology · 2017Article
- Flower Development and Sex Determination between Male and Female Flowers inFrontiers in plant science · 2017Article
- Review
- Article
- Floral structure and development in the monoecious palm Gaussia attenuata (Arecaceae; Arecoideae).Annals of botany · 2014Article
- De novo genome sequencing and comparative genomics of date palm (Phoenix dactylifera).Nature biotechnology · 2011Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsPhoenix dactylifera (date palm) is a dioecious species displaying strong dimorphism between pistillate and staminate flowers. The mechanisms involved in the development of unisexual flowers are as yet unknown.
methodsThis paper describes the results of inflorescence and flower development studies using different histological and molecular cytological approaches. Nuclear integrity and cell division patterns in reproductive organs were investigated through DAPI staining and in situ hybridization using a histone H4 gene probe. KEY
resultsThe earliest sex-related difference in flower buds is observed at an otherwise 'bisexual' stage, at which the number of cells in the gynoecium of pistillate flowers is higher than in their staminate counterparts. In the pistillate flower, staminodes (sterile stamens) display precocious arrest of development followed by cell differentiation. In the staminate flower, pistillodes (sterile gynoecium) undergo some degree of differentiation and their development ceases shortly after the ovule has been initiated. Staminode and pistillode cells exhibit nuclear integrity although they did not show any accumulation of histone H4 gene transcripts.
conclusionsThese results strongly suggest that the developmental arrest of sterile sex organs and the subsequent unisexuality of date palm flowers result from a cessation of cell division and precocious cell differentiation rather than from cell death.
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