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The female gametophyte is central to the reproductive success of flowering plants, with its development being tightly controlled by an intricate network of genes and signaling pathways. A deeper understanding of these regulatory mechanisms is essential for uncovering the complexities of plant growth and development. Recent studies have shed light on various aspects of female gametophyte development, highlighting the role of specific gene and signaling networks. Among these, the ERECTA family of leucine-rich repeat receptor-like kinase (RLK) in has emerged as a key player, influencing multiple biological processes, particularly those governing reproductive development of the female gametophyte. This review focuses on the significant progress made in understanding the ERECTA family's involvement in germline cell development, emphasizing its functional roles and signaling mechanisms in female gametophyte development.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12251741 | PMC |
http://dx.doi.org/10.3390/plants14131900 | DOI Listing |
Ann Bot
September 2025
CEFE, Univ. Montpellier, CNRS, EPHE, IRD, Montpellier, France.
Background And Aims: Pollen:ovule ratios are often lower in species and populations with higher selfing rates. This may be due either to higher pollination efficiency through selfing, or to lower male competition when less allo-pollen is available. Changes in pollination can also impact pollen traits, such as the number of apertures.
View Article and Find Full Text PDFJ Exp Bot
September 2025
Department of Biology, Kyungpook National University, Daegu 41566, Korea.
Above-ground lateral organs, such as leaves and flowers, should grow to an optimal size and develop particular structures, which are primarily laid out on the meristematic activities of their primordia. The GROWTH-REGULATING FACTOR‒GRF-INTERACTING FACTOR (GRF‒GIF) transcriptional complex and the AINTEGUMENTA (ANT) transcription factor play key roles in the establishment of the meristematic competence of lateral organ primordia with highly overlapping expression patterns, and thus functional relationships between them have long been speculated. In this study, we constructed the ant gif1 gif2 gif3 quadruple mutant, which produced much smaller and narrower leaves, sepals, and petals with far fewer cells compared with its parental lines.
View Article and Find Full Text PDFGenes (Basel)
July 2025
College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China.
Background: L. is one of the main economic crops worldwide, and increasing the size/weight of its seeds is a potential strategy to improve its seed-related yield. AINTEGUMENTA (ANT) is an organogenesis transcription factor mediating cell proliferation and expansion in , but little is known about its candidate function in upland cotton seed.
View Article and Find Full Text PDFPlant Physiol
August 2025
Institute of Plant Sciences, Agricultural Research Organization, Volcani Institute, HaMaccabbim Road 68, Rishon LeZion 7505101, Israel.
Ovule fertilization initiates fruit set, the transition from a quiescent ovary to a growing ovary (fruit), yet how ovary growth is arrested before fertilization remains poorly understood. Previously, we have shown that the ovaries of the tomato (Solanum lycopersicum) AGAMOUS-like6 (SlAGL6) loss-of-function mutant (slagl6CR-sg1) develop normally until anthesis but nevertheless can set fruits independently of fertilization (parthenocarpy). Here, we demonstrate that SlAGL6 suppresses parthenocarpy specifically from the ovules, as reintroducing SlAGL6 into slagl6CR-sg1 using an ovule-specific promoter restored ovary arrest and eliminated parthenocarpy.
View Article and Find Full Text PDFPlant Sci
August 2025
National Key Laboratory of Crop Genetic Improvement, National Engineering Research Center of Rapeseed, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, PR China. Electronic address:
Cytoplasmic male sterility (CMS) is a maternally inherited agronomic trait. The CMS lines cannot produce viable pollens (incomplete or nonfunctional), properly dehisce pollen, germinate on the stigma or be accessible to the stigma, thus unable to fertilize the ovule/ egg. Although CMS is not beneficial to the plants itself, it is a valuable resource for hybrid breeding.
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