Feng H, Thompson EM.

Front Cell Dev Biol. 2023 Dec 7;11:1323378. doi:10.3389/fcell.2023.1323378

Functional specialization of Aurora kinase homologs during oogenic meiosis in the tunicate Oikopleura dioica.

“a C-terminal GFP fusion [of OdAur1] was localized on centrosomes throughout mitosis” “a commercial phospho-Aurora antibody that can recognize the phosphorylated forms of both Aurora1 and Aurora2 in O. dioica [localised] on centrosomes and chromosomes in prophase and metaphase, and on centrosomes and the central spindle in anaphase” “This suggests that Aurora1 and Aurora2 in O. dioica represent the polar and equatorial forms of Aurora kinases”. “[Knockdown] suggests that Aurora1 is involved in promoting the progression of prometaphase I. In all the Aur2 KD oocytes, both H3-pS10 and H3-pS28 were absent, and chromosomes were decondensed, reminiscent of INCENPa knockdown phenotypes”