Mitochondrial genome structure of rice suspension culture from cytoplasmic male-sterile line (A-58CMS): reappraisal of the master circle

1992 ◽  
Vol 83 (3) ◽  
pp. 279-288 ◽  
Author(s):  
K. Yamato ◽  
Y. Ogura ◽  
T. Kanegae ◽  
Y. Yamada ◽  
K. Ohyama
Keyword(s):  
Mitochondrial Genome ◽  
Suspension Culture ◽  
Genome Structure ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Cytoplasmic Male Sterile ◽  
Rice Suspension Culture

THE GENETICS OF FERTILITY RESTORATION IN CYTOPLASMIC MALE-STERILE RYE

1979 ◽  
Vol 21 (3) ◽  
pp. 417-422 ◽  
Author(s):  
G. J. Scoles ◽  
L. E. Evans
Keyword(s):  
Secale Cereale ◽  
Fertility Restoration ◽  
Inbred Lines ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Cytoplasmic Male Sterile ◽  
Restorer Genes ◽  
Secale Cereale L ◽  
Partial Fertility

Three inbred lines of rye (Secale cereale L.) known to be capable of restoring fertility to a cytoplasmic male-sterile line were crossed with the sterile line. The proportions of male fertile, partially male fertile and male sterile plants in F2 and backcross progenies indicated that three dominant restorer genes were present in each line. These were designated Rf1, Rf2 and Rf3, their relative expressivity was Rf1>Rf2>Rf3. Expressivity was dependent upon environment. Partial fertility occurred when certain genotypes carried two of the three alleles as dominant, but was dependent upon genotype and environment.

A comparative light and electron microscopic study of microsporogenesis in male-fertile and cytoplasmic male-sterile pepper (Capsicum annuum)

1974 ◽  
Vol 52 (3) ◽  
pp. 435-441 ◽  
Author(s):  
Harry T. Horner Jr. ◽  
Milton A. Rogers
Keyword(s):  
Anther Development ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Electron Microscopic ◽  
Tetrad Stage ◽  
Cytoplasmic Male Sterile ◽  
Tapetal Cells ◽  
Fertile Line ◽  
Pollen Stage ◽  
Further Development

In the male-fertile line of pepper, microsporogenesis and pollen development are normal. During meiosis, the meiocytes become encased in callose and a locular cavity forms. A rudimentary pollen wall, preceded by primexine deposition, is formed at the tetrad stage around the microspores before their release from the callose. The tapetum remains peripheral in the locule until the vacuolate pollen stage when it disappears. The sporogenous cells of the cytoplasmic male-sterile line complete meiosis, and the callose-encased microspores also deposit a primexine. Further development of the microspores is arrested. Before and during meiosis the tapetal cells become highly vacuolate and remain appressed to the meiocytes; a locular cavity is not formed. After primexine deposition, the tetrads of microspores, which are still encased in callose, seem to collapse as they are encroached upon by the vacuolate tapetum. After abortion of the microspores the outer tapetal layer degenerates, followed by the inner tapetal layer. The aborted mass late in anther development consists of crushed microspore tetrads, primary walls of the sporogenous cells and tapetum, callose, and the collapsed tapetum. The manner of abortion in pepper is compared with previously described mechanisms.

THE MORPHOLOGY AND FUNCTION OF FLORAL ORGANS FOR CYTOPLASMIC MALE-STERILE LINE OF TUBER MUSTARD

1995 ◽  
pp. 345-352
Author(s):  
C. Zhujun ◽  
W. Bingliang ◽  
G. Qikang ◽  
D. Weimin ◽  
Z. Mingfang ◽  
...  
Keyword(s):  
Male Sterile ◽  
Male Sterile Line ◽  
Floral Organs ◽  
Cytoplasmic Male Sterile ◽  
Tuber Mustard ◽  
And Function

Microtubule and male sterility in a gene-cytoplasmic male sterile line of non-heading Chinese cabbage

2012 ◽  
Vol 92 (15) ◽  
pp. 3046-3054 ◽  
Author(s):  
Jingyi Zhang ◽  
Changwei Zhang ◽  
Yan Cheng ◽  
Li Qi ◽  
Shumin Wang ◽  
...  
Keyword(s):  
Male Sterility ◽  
Chinese Cabbage ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Cytoplasmic Male Sterile ◽  
Heading Chinese Cabbage
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