phallapodeme | ectopic (with BtkL1-3)
Mutant ovaries are grossly aberrant as a result of the irregular shapes and sizes of germ cells and follicle cells. Ring canals are much smaller than wild type - their lumina are very narrow.
Btk29Afic-P mutant germaria contain significantly more germ cells than do wild-type germaria. Although supernumerary cells with spectrosomes are observed in the mutants, many of the excess cells appear to be cystocytes, as they are accompanied by a branched fusome structure.
The initial jump score of mutant flies in an olfactory jump reflex assay is normal. However, habituation of the olfactory jump reflex occurs significantly faster than normal in mutant flies. Spontaneous recovery of the olfactory jump reflex after habituation training is normal in the mutant flies. Dishabituation (after receiving a dishabituating stimulus) in mutant flies is not different from the response seen in wild-type flies. Sensitisation of the olfactory jump reflex is defective in mutant flies.
The apodemes in homozygous males typically split into two pieces at their base, in contrast to wild-type males which have a single apodeme. In some mutant males the single apodemes emerge at the base and then split proximally. Adult longevity is reduced to 11% of that of wild-type flies.
Copulation involving mutant Btk29Afic-P males often terminates shortly after initiation. Mating behavior of Btk29Afic-P females is normal. Multiple copulation attempts occur though are rare in the wild type. Two apodemes are present bilaterally at the base of the penis apparatus in all mutant males (Btk29Afic-P homozygotes and Btk29Afic-P/Btk29AL1-3), whereas wild type males have a single apodeme. Mutant males exhibit prominent atrophy of the posterior ejaculatory duct. Life span of mutant adults is reduced compared to wild-type flies.
Analysis of the non-associative learning of the jump reflex demonstrates mutants exhibit specific defects in sensitization which leads to fast habituation.
Flies exhibit a highly variable copulatory span and repetitive copulation in mated pairs often occurs soon after separation. Adult lifespan is decreased relative to wild-type.
Btkfic-P has short lived phenotype, suppressible by Hsap\BTKhs.PH
Btkk05610/Btkfic-P is a suppressor of grandchildless phenotype of pcsgs
Btkfic-P/Btkfic-P is a suppressor of grandchildless phenotype of pcsgs
Btkfic-P has nurse cell ring canal phenotype, suppressible by pcsgs
Btkfic-P has phallapodeme phenotype, suppressible by Hsap\BTKE41K.hs
Btkfic-P has phallapodeme phenotype, suppressible by Hsap\BTKhs.PH
Btkfic-P has phallapodeme phenotype, suppressible by pcsgs
Btkfic-P has phallapodeme phenotype, non-suppressible by Hsap\BTKmut.hs
Btkfic-P is a suppressor of nurse cell ring canal phenotype of pcsgs
A significant proportion of Btk29Afic-P pcsgs double mutant males develop normal looking genitalia.
The split apodeme phenotype seen in Btk29Afic-P males is partially rescued by expression of Hsap\BTKhs.PH or Hsap\BTKE41K.hs during the third larval instar and pupal stages, but is not rescued by expression of Hsap\BTKmut.hs. The reduced longevity seen in Btk29Afic-P adult flies is slightly, but significantly, alleviated by expression of Hsap\BTKhs.PH during the third larval instar to pupal stage.