Spelling suggestions: "subject:"endocitosis"" "subject:"endometrosis""
1 |
Endopolyploidy in Cyclopoid CopepodsRasch, Ellen, Wyngaard, Grace A. 01 May 2008 (has links)
Somatic tissues in mature copepods are determinate in growth, not undergoing mitosis; cell number remains constant throughout adult life. Here we report evidence of polyploidization for eight species of cyclopoid copepods. Using static Feulgen-DNA cytophotometry, we measured individual somatic nuclei in populations of Eucyclops ensifer from Brazil and of Eucyclops agilis from Ohio, U.S.A. Small but potentiality significant percentages of the adult somatic cells in these species, as well as in Bryocyclops caroli, Halicyclops tagea, Macrocyclops albidus, Mesocyclops edax, Mesocyclops thermocyclopoides, and Thermocyclops decipiens, contained at least twice (4C) the amount of DNA found in their diploid (2C) cells. These species have 2C DNA values that are representative of the range of genome sizes in cyclopoid copepods which, as a group, have much smaller genomes than calanoid copepods. Polyploidy may be a previously unrecognized mechanism whereby copepods alter the DNA content or nucleotype during specific stages in development. DNA reduplication preceding a cycle of endomitosis may result in a doubling of the functional genome, thus providing additional template for mRNA transcription related to specific functions.
|
2 |
Psychosine-triggered endomitosis is modulated by membrane sphingolipids through regulation of phosphoinositide 4,5-bisphosphate production at the cleavage furrow / サイコシンによるエンドマイトーシスは、分裂溝におけるホスファチジルイノシトール4, 5-ビスリン酸の生合成を制御する膜のスフィンゴ脂質類によって調節されるWatanabe, Hiroshi 23 March 2017 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(人間健康科学) / 甲第20293号 / 人健博第41号 / 新制||人健||4(附属図書館) / 京都大学大学院医学研究科人間健康科学系専攻 / (主査)教授 高桑 徹也, 教授 岩井 一宏, 教授 精山 明敏 / 学位規則第4条第1項該当 / Doctor of Human Health Sciences / Kyoto University / DFAM
|
Page generated in 0.0573 seconds