ArticleJournal of experimental botany2018
Unfertilized ovary pushes wheat flower open for cross-pollination.
Article in Journal of experimental botany, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 44 citations in OpenAlex.
- Transcriptional signatures associated with female receptivity and longevity in genetically male-sterile wheat (Triticum aestivum L.).Scientific reports · 2026Article
- Stigma longevity is not a major limiting factor in hybrid wheat seed production.Journal of experimental botany · 2025Article
- New genomic resources to boost research in reproductive biology to enable cost-effective hybrid seed production.The plant genome · 2025Article
- Exploring the Strategies of Male Sterility for Hybrid Development in Hexaploid Wheat: Prevailing Methods and Potential Approaches.Rice (New York, N.Y.) · 2025Review
- From the floret to the canopy: High temperature tolerance during flowering.Plant communications · 2023Review
- Identification of candidate genes responsible for chasmogamy in wheat.BMC genomics · 2023Article
- New Growth-Related Features of Wheat Grain Pericarp Revealed by Synchrotron-Based X-ray Micro-Tomography and 3D Reconstruction.Plants (Basel, Switzerland) · 2023Article
- Harnessing intra-varietal variation for agro-morphological and nutritional traits in a popular rice landrace for sustainable food security in tropical islands.Frontiers in nutrition · 2023Article
- Genome-Wide Association Analysis for Hybrid Breeding in Wheat.International journal of molecular sciences · 2022Article
- A scalable phenotyping approach for female floral organ development and senescence in the absence of pollination in wheat.Development (Cambridge, England) · 2022Article
- Mapping open chromatin by ATAC-seq in bread wheat.Frontiers in plant science · 2022Article
- Wheat Escapes Low Light Stress by Altering Pollination Types.Frontiers in plant science · 2022Article
- Heat stress responses vary during floret development in European spring barley cultivars.Frontiers in plant science · 2022Article
- Programmed Cell Death in DevelopingInternational journal of molecular sciences · 2021Article
- Spikelet movements, anther extrusion and pollen production in wheat cultivars with contrasting tendencies to cleistogamy.BMC plant biology · 2021Article
- Increased expression of the MALE STERILITY1 transcription factor gene results in temperature-sensitive male sterility in barley.Journal of experimental botany · 2020Article
- Feeling the heat: developmental and molecular responses of wheat and barley to high ambient temperatures.Journal of experimental botany · 2020Review
- Insights into transcriptional characteristics and homoeolog expression bias of embryo and de-embryonated kernels in developing grain through RNA-Seq and Iso-Seq.Functional & integrative genomics · 2019Article
- CRISPR/Cas9-mediated knockout of Ms1 enables the rapid generation of male-sterile hexaploid wheat lines for use in hybrid seed production.Plant biotechnology journal · 2019Article
- Effects of Rht-B1 and Ppd-D1 loci on pollinator traits in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
Corrections and comments
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bread wheat is strongly autogamous; however, an opportunity for outcrossing occurs when self-pollination fails and florets open. The first phase of floret opening at anthesis is short and induced by lodicule turgidity. Some wheat florets re-open post-anthesis for several days, known as the 'second opening', for which the underlying mechanisms are largely unknown. We performed detailed physiological, anatomical, and histological investigations to understand the biological basis of the flower opening process. Wheat florets were observed open when the ovary was unfertilized. Unfertilized ovaries significantly increased in radial size post-anthesis, pushing the lemma and palea apart to open the florets. The absence of fertile pollen was not directly linked to this, but anther filament elongation coincided with initiation of ovary swelling. The pericarp of unfertilized ovaries did not undergo degeneration as normally seen in developing grains, instead pericarp cells remained intact and enlarged, leading to increased ovary radial size. This is a novel role for the ovary pericarp in wheat flower opening, and the knowledge is useful for facilitating cross-pollination in hybrid breeding. Ovary swelling may represent a survival mechanism in autogamous cereals such as wheat and barley, ensuring seed set in the absence of self-fertilization and increasing genetic diversity through cross-pollination.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.