scholarly journals Comparing of Self-Incompatibility and Cytoplasmic Male Sterility Systems for the performance of F1 hybrids in cabbage (Brassica oleracea var. capitata L.)

2016 ◽  
Vol 7 (3) ◽  
pp. 602 ◽  
Author(s):  
Hament Thakur ◽  
Vidyasagar
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Brassica Oleracea ◽  
F1 Hybrids ◽  
Self Incompatibility

Cytoplasmic male sterility in Desmodium

1969 ◽  
Vol 20 (2) ◽  
pp. 227 ◽  
Author(s):  
KS McWhirter
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Interspecific Hybrid ◽  
Pollen Fertility ◽  
Pollen Sterility ◽  
Hybrid Origin ◽  
F1 Hybrids ◽  
Male Sterile ◽  
Genetic Stocks

A type of male sterility found in two Desmodium plants of probably interspecific hybrid origin was cytoplasmically inherited. The cytoplasmic male-sterile character was incorporated in the tropical legume Desmodium sandwicense by backcrossing. In this genetic background pollen sterility was complete. The male-sterile character was not graft-transmissible, and it produced no detectable pleiotropic effects on growth and development. Desmodium intortum gave restoration of pollen fertility in Fl hybrids with male-sterile lines of D. sandwicense. Restored F1 hybrids produced apparently normal pollen, but tests of functional ability of the pollen disclosed that pollen fertility was less than that of Fl hybrids with normal cytoplasm. Incomplete restoration of fertility was not due to heterozygosity of fertility-restoring genes with gametophytic expression, since fertility-restoring genes were shown to act sporophytically. The results established the occurrence in the legume Desmodium of a system of determination of the male-sterile, fertility-restored phenotypes that is similar to the cytoplasmic male sterility systems described in many other angiosperm plants. A scheme utilizing the genetic stocks produced in this study for commercial production of the interspecific hybrid D. sandwicense x D. intortum as a cultivar is presented.

scholarly journals Development of male sterile broccoli lines with raphanus sativus cytoplasm and assessment of their value for breeding purposes

2013 ◽  
Vol 21 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Piotr Kamiński
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Raphanus Sativus ◽  
Morphological Characters ◽  
F1 Hybrids ◽  
Vegetable Crops ◽  
Male Sterile ◽  
Self Compatibility ◽  
High Level ◽  
Research Institute

ABSTRACT The aim of this study was to obtain new broccoli lines with cytoplasmic male sterility trait for the development of the modern F1 hybrids. CDT70 cauliflower line obtained in the Research Institute of Horticulture, formerly Research Institute of Vegetable Crops, Skierniewice, Poland, with the reliable cytoplasmic male sterility from Raphanus sativus (Ogu-INRA) was selected as a source of this trait. Three broccoli lines: BMi, BCr1 and BCr2 were used as donors of commercial characters in all cross combinations with sterile components. Selected fertile broccoli genotypes were characterized by good quality, uniformity and high level of self-compatibility. The breeding procedure included three consecutive back crosses of male sterile genotypes with fertile broccoli lines that lasted from 2008 to 2012. In each generation, self-compatibility level, the stability of the male sterility trait and ability for the generative propagation of back-crossed genotypes were tested in comparison with donor broccoli lines in the greenhouse. The agronomical and morphological characters of the back-crossed progeny were also evaluated in the field. As a result, three CMS broccoli lines of Bc3 generation with good quality and high seeding index, suitable for the breeding purposes, were obtained.

scholarly journals Cloning and transcript analyses of the chimeric gene associated with cytoplasmic male sterility in cauliflower (Brassica oleracea var. botrytis)

Euphytica ◽  
2006 ◽  
Vol 151 (1) ◽  
pp. 121-121
Author(s):  
Chunguo Wang ◽  
Xiaoqiang Chen ◽  
Tianying Lan ◽  
Hui Li ◽  
Wenqin Song
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Brassica Oleracea ◽  
Chimeric Gene

STERILITY IN SUCCESSIVE BACKCROSSES OF RAPHANOBRASSICA (2n = 4x = 36) WITH RECURRENT BRASSICA OLERACEA (2n = 2x = 18)

1979 ◽  
Vol 21 (4) ◽  
pp. 479-485 ◽  
Author(s):  
Gilbert D. McCollum
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Brassica Oleracea ◽  
Chromosome Numbers ◽  
Raphanus Sativus ◽  
Seed Set ◽  
Cole Crops ◽  
Hybrid Plants ◽  
Raphanus Sativus L ◽  
Brassica Oleracea L

A series of crosses to develop cytoplasmic male sterility in the cole crops by transferring the Brassica oleracea L. (2n = 18) genome into the cytoplasm of radish (Raphanus sativus L., 2n = 18) through the amphidiploid Raphanobrassica (2n = 4x = 36) was terminated because of complete seed sterility of the only two BC6 hybrid plants obtained. There was no improvement of seed set in six backcrosses to diploid B. oleracea, and the chromosome numbers of the few plants producing seeds were higher than expected, frequently being close to the triploid number (2n = 3x = 27) of the BC1. Zygotes with less than two radish chromosomes were not found; those with less than four were few; and those with less than six rarely produced offspring.

scholarly journals Complete Mitochondrial Genome Sequence and Identification of a Candidate Gene Responsible for Cytoplasmic Male Sterility in Celery (Apium graveolens L.)

2021 ◽  
Vol 22 (16) ◽  
pp. 8584
Author(s):  
Qing Cheng ◽  
Peng Wang ◽  
Tiantian Li ◽  
Jinkui Liu ◽  
Yingxue Zhang ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
Cytoplasmic Male Sterility ◽  
Candidate Gene ◽  
Male Sterility ◽  
Complete Mitochondrial Genome ◽  
Apium Graveolens ◽  
F1 Hybrids ◽  
Cox1 Gene ◽  
Unique Region ◽  
Cms Line

Celery (Apium graveolens L.) is an important leafy vegetable worldwide. The development of F1 hybrids in celery is highly dependent on cytoplasmic male sterility (CMS) because emasculation is difficult. In this study, we first report a celery CMS, which was found in a high-generation inbred line population of the Chinese celery “tanzhixiangqin”. Comparative analysis, following sequencing and assembly of the complete mitochondrial genome sequences for this celery CMS line and its maintainer line, revealed that there are 21 unique regions in the celery CMS line and these unique regions contain 15 ORFs. Among these ORFs, only orf768a is a chimeric gene, consisting of 1497 bp sequences of the cox1 gene and 810 bp unidentified sequences located in the unique region, and the predicted protein product of orf768a possesses 11 transmembrane domains. In summary, the results of this study indicate that orf768a is likely to be a strong candidate gene for CMS induction in celery. In addition, orf768a can be a co-segregate marker, which can be used to screen CMS in celery.

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