MEIOTIC SPINDLE PLAQUES IN SACCHAROMYCES CEREVISIAE
نویسندگان
چکیده
منابع مشابه
Meiotic Spindle Plaques in Saccharomyces Cerevisiae
The plaque-hke spindle poles in bakers ' yeast have been observed by several investigators, bu t the relaUonship of these structures to the nuclear envelope has not been clearly shown Several authors have noted an association of the p laque wi th a nuclear pore. Rob inow and 3,{arak (10) repor ted t h a t mitot ic spindle plaques were "se t in to" nuclear pores, and according to M o o r (7) pla...
متن کاملMeiotic Diploid Progeny and Meiotic Nondisjunction in SACCHAROMYCES CEREVISIAE.
Abnormalities in chromosome number that occurred during meiosis were evaluated with a specially-constructed diploid strain of Saccharomyces cerevisiae. The strain is heterozygous for six markers of the right arm of chromosome V and heterozygous for cyh2 (resistance to cycloheximide) on chromosome VII.-Selection of meiotic spores on a medium containing cycloheximide and required nutrilites-excep...
متن کاملSpindles, Spindle Plaques, and Meiosis in the Yeast Saccharomyces Cerevisiae (hansen)
The intranuclear spindle of yeast has an electron-opaque body at each pole. These spindle plaques lie on the nuclear envelope. During mitosis the spindle elongates while the nuclear membranes remain intact. After equatorial constriction there are two daughted nuclei, each with one spindle plaque. The spindle plaque then duplicates so that two side-by-side plaques are produced. These move rapidl...
متن کاملAnalysis of meiotic recombination initiation in Saccharomyces cerevisiae
Meiosis is the unique process in which diploid cells undergo two consecutive divisions to produce haploid daughter cells. It is indispensable for sexual reproduction in all eukaryotic organisms and maintains proper chromosome number through generations. An integral step in the meiotic program is genetic recombination; recombination is required for a successful reductional division. In the yeast...
متن کاملMeiotic recombination at the ends of chromosomes in Saccharomyces cerevisiae.
Meiotic reciprocal recombination (crossing over) was examined in the outermost 60-80 kb of almost all Saccharomyces cerevisiae chromosomes. These sequences included both repetitive gene-poor subtelomeric heterochromatin-like regions and their adjacent unique gene-rich euchromatin-like regions. Subtelomeric sequences underwent very little crossing over, exhibiting approximately two- to threefold...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1972
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.53.3.837