organism: Drosophila silvestris x Drosophila planitibia
description: mating F1 females of parental cross SP (D. silvestris females x D. planitibia males) to emerged D. silvestris males; phenotype of no sperm.
attributes.tag: strain
attributes.value: BC-NS
attributes.tag: age
attributes.value: adult
attributes.tag: sex
attributes.value: male
attributes.tag: tissue
attributes.value: testis
attributes.tag: breeding_method
attributes.value: mating F1 females of parental cross SP (D. silvestris females x D. planitibia males) to emerged D. silvestris males
attributes.tag: BioSampleModel
attributes.value: Model organism or animal