Abl kinase activity is required to attenuate CySC competition in the Drosophila testis.

aTestes with CySC clones = testes with GFP+, Zfh-1+ cells/total testes scored (percentage).bTestes with >50% marked CySCs = testis where GFP+, Zfh-1+ cells>GFP−, Zfh-1+ cells/total testes scores (percentage).cAbl4 MARCM clones expressing Abl = Abl4 MARCM flies driving UAS-Abl specifically in induced clones.dAbl4 MARCM clones expressing AblKinaseDead = Abl4 MARCM flies driving UAS-AblKinaseDead specifically in induced clones.ND = Not Determined, ACI = After Clone Induction,* = p value*** = p valueAbl kinase activity is required to attenuate CySC competition in the Drosophila testis.

a. 携带囊干细胞（Cyst Stem Cell, CySC）克隆的睾丸 = 携带绿色荧光蛋白（Green Fluorescent Protein, GFP）阳性、Zfh-1阳性细胞的睾丸数与统计总睾丸数的比值（以百分比计）。
b. 标记阳性CySC占比超过50%的睾丸 = GFP阳性、Zfh-1阳性细胞数大于GFP阴性、Zfh-1阳性细胞数的睾丸数与统计总睾丸数的比值（以百分比计）。
c. 表达Abl的Abl4可抑制性细胞标记嵌合分析（MARCM）克隆 = 可特异性在诱导克隆中驱动上游激活序列（UAS）-Abl表达的Abl4 MARCM果蝇。
d. 表达激酶失活型Abl（AblKinaseDead）的Abl4 MARCM克隆 = 可特异性在诱导克隆中驱动UAS-AblKinaseDead表达的Abl4 MARCM果蝇。
ND = 未确定（Not Determined, ND），ACI = 克隆诱导后（After Clone Induction, ACI），* 代表p值，*** 代表p值
在果蝇睾丸中，Abl激酶活性是减弱CySC竞争所必需的。