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WBPhenotype:0000688
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sterile
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Animals generate defective gametes, are otherwise unable to reproduce or they generate progeny that are unable to reproduce. |
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WBPhenotype:0001951
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pachytene region organization variant
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Animals exhibit variations from control animals in the organization of the germ cell nuclei in the pachytene stage region of the gonad. In C. elegans the pachytene region begins just proximal to the germline's transition zone, where germ cells coordinately switch into the leptotene/zygotene stage from the premeiosis stage (WormAtlas). |
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WBPhenotype:0001980
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germ cell compartment expansion variant
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Animals exhibit variations in the increase in size of compartments of the germline. In the C. elegans germline, syncytial compartments enlarge just prior to and coincident with the loop region, eventually abscising, to become fully enclosed germ cells (oocytes). |
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WBPhenotype:0001952
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germline nuclear positioning variant
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Variations in the directed movement/or positioning of a nucleus to a specific location within the germline compartment compared to control. |
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WBPhenotype:0001944
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oocyte number decreased
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A decreased number of celullarized haploid female germ cells (oocytes) are present in the gonad compared to control. |
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WBPhenotype:0001957
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gonad small
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A decrease in size of the specialized tissue of the reproductive tract that produces the male or female gametes compared to control (Wormatlas). |
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WBPhenotype:0001969
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germ cell compartment morphology variant
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Any variation in the form or composition of the compartments in the germline of females/hermaphrodites compared to control animals. In C. elegans these compartments contain a nucleus and are connected to a common cytoplasm (rachis). These compartments eventually undergo cellularization and become oocytes. |
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WBPhenotype:0001950
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diplotene region organization variant
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Animals exhibit variations from control animals in the organization of the germ cell nuclei in the gonad that are in the diplotene stage. In C. elegans the diplotene region follows the pachytene region and occurs just distal to, and coincident with, the loop in the gonad arm. In the diplotene region germ cell compartments become organized into a single file. |
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WBPhenotype:0001954
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diplotene absent during oogenesis
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The diplotene stage is not observed in developing oocytes. Diplotene is a cell cycle process comprising the steps by which a cell progresses through the fourth stage of prophase I in meiosis, in which the homologous chromosomes begin to separate and the synaptonemal complex dissolves. |
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WBPhenotype:0001958
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gonad degenerate
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Animals contain a gonad that initially functioned, but subsequently stopped. In hermaphrodites or females there is often the presence old embryos and/or hatched larva, but no young embryos, in the uterus. |
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WBPhenotype:0001941
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rachis narrow
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The nucleus-free core of germline cytoplasm in the gonad is not as wide as control animals. |
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WBPhenotype:0001942
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rachis absent
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The nucleus-free core of germline cytoplasm in the gonad is missing. |
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WBPhenotype:0001949
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diakinesis region organization variant
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Animals exhibit variations from control animals in the organization of the germ cell nuclei in the gonad that are in the diakinesis stage. In C. elegans the diakinesis region occurs in the proximal gonad arm and is preceded by the diplotene region. In the diakinesis region oocytes arrest until oocyte maturation occurs. |
