miR167 limits anther growth to potentiate anther dehiscence
نویسندگان
چکیده
منابع مشابه
Auxin regulates Arabidopsis anther dehiscence, pollen maturation, and filament elongation.
We provide evidence on the localization, synthesis, transport, and effects of auxin on the processes occurring late in Arabidopsis thaliana stamen development: anther dehiscence, pollen maturation, and preanthesis filament elongation. Expression of auxin-sensitive reporter constructs suggests that auxin effects begin in anthers between the end of meiosis and the bilocular stage in the somatic t...
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Apposite development of anther and its dehiscence are important for the reproductive success of the flowering plants. Recently, bHLH142, a bHLH transcription factor encoding gene of rice has been found to show anther-specific expression and mutant analyses suggest its functions in regulating tapetum differentiation and degeneration during anther development. However, our study on protein level ...
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Unlike most genera in the early-divergent angiosperm family Annonaceae, Pseuduvaria exhibits a diversity of floral sex expression. Most species are structurally andromonoecious (or possibly androdioecious), although the hermaphroditic flowers have been inferred to be functionally pistillate, with sterile staminodes. Pseuduvaria presents an ideal model for investigating the evolution of floral s...
متن کاملThe MADS box transcription factor ZmMADS2 is required for anther and pollen maturation in maize and accumulates in apoptotic bodies during anther dehiscence.
The maize (Zea mays) late pollen gene ZmMADS2 belongs to the MIKC type of MADS box transcription factor genes. Here, we report that ZmMADS2, which forms a homodimer in yeast (Saccharomyces cerevisiae), is required for anther dehiscence and pollen maturation. Development of anthers and pollen was arrested at 1 d before dehiscence in transgenic plants expressing the ZmMADS2-cDNA in antisense orie...
متن کاملCharacterization of two ethylene receptors PhERS1 and PhETR2 from petunia: PhETR2 regulates timing of anther dehiscence.
Two cDNAs (PhERS1 and PhETR2) encoding ethylene receptor homologues were cloned and characterized from petunia. Genomic Southern blot analysis revealed that small families of PhERS1-related and PhETR2-related genes exist in petunia. PhERS1 and PhETR2 are constitutively expressed in stem, flower bud, flower, and roots, with a very low level in leaves. High levels of both PhERS1 and PhETR2 transc...
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ژورنال
عنوان ژورنال: Development
سال: 2019
ISSN: 1477-9129,0950-1991
DOI: 10.1242/dev.174375