The Inheritance of Polima Cytoplasmic Male Sterility in Brassica napus L.

1990 ◽  
Vol 104 (2) ◽  
pp. 121-124 ◽  
Author(s):  
Yang Guangsheng ◽  
Fu Tingdong
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Brassica Napus L

scholarly journals SEARCH OF FERTILITY REGULATORS FOR POLIMA TYPE CYTOPLASMIC MALE STERILITY OF SPRING RAPE (Brassica napus L.) AND ASSESSMENT OF THEIR QUALITY

2021 ◽  
Vol 2021 (1) ◽  
pp. 24-32
Author(s):  
Igor Pastukhov ◽  
Vladimir Karpachev
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Field Experiments ◽  
Practical Interest ◽  
Biochemical Properties ◽  
Reducing Agents ◽  
Brassica Napus L ◽  
Complete Restoration ◽  
Fertility Restorers

One of the prior directions in modern rapeseed breeding is making heterotic hybrids. Seed production of most hybrids F1 used in production are often carried out by two types of cytoplasmic male sterility, there are Polima and Ogura. At the All-Russian Rapeseed Research Institute, fertility restorers on sterile cytoplasm were made and estimated for the main valuable characteristics and biochemical properties. The purpose of the study was to create reducing agents necessary for obtaining highly productive hybrids on the Polima type cytoplasmic male sterility (CMS). The object of research was 56 varieties of Brassica napus L., which were chosen in 2013. The setting of experiments, observations, records and analyzes were carried out using the field plot technique, the methodology of field experiments, the method of statistical data processing. It is noted that hybrids F1 had more productivity than the parental forms and the standard (Ratnik and Rif). Promising reducing agents of cytoplasmic male sterility of the Polima type were identified, which ensured complete restoration of fertility in sterile lines with CMS of the Polima type. The reducing agent LHR-1 is of practical interest for the creation of hybrids on the Polima CMS.

Comparison of the effect of mur and nap cytoplasms on the performance of intercultivar summer rape hybrids

2004 ◽  
Vol 84 (3) ◽  
pp. 731-738 ◽  
Author(s):  
Teresio C. Riungu ◽  
Peter B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Protein Concentration ◽  
Hybrid Seed Production ◽  
Brassica Napus L ◽  
Oil Concentration ◽  
Good Potential ◽  
Biological Cost ◽  
Hybrid Group

The performance of six isogenic pairs of male fertility restored, hand-crossed, summer rape (Brassica napus L.) hybrids, in the mur and nap cytoplasms, were investigated in four Manitoba environments. Hybrids in both cytoplasms exhibited high-parent heterosis for seed yield, total dry matter (TDM) and, to a lesser degree, harvest index (HI). Negative high parent heterosis for days to flowering, days to maturity, oil concentration and protein concentration was observed. Combined over hybrids within cytoplasms, the mur and nap cytoplasmic hybrid groups differed in oil concentration in all environments, and in protein concentration in one of four environments. Similarly, the mur hybrid group was lower-yielding and had lower TDM, HI and oil concentration, but higher protein concentration than the nap hybrid group. Even though there are some biological costs associated with the mur cytoplasm, especially for oil concentration, it appears that the mur cytoplasmic male sterility (CMS) system has good potential for use in summer rape hybrid cultivar breeding and commercial hybrid seed production, since hybrids in the mur cytoplasm display heterosis for many traits in absolute terms. Key words: Biological cost, Brassica napus L., cytoplasmic male sterility, heterosis, hybrid

Diplotaxis muralis (mur) cytoplasmic male sterility system maintainer occurrence and frequency in summer rape

2000 ◽  
Vol 80 (3) ◽  
pp. 587-589 ◽  
Author(s):  
Teresio C. Riungu ◽  
Peter B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Key Words ◽  
Male Sterility ◽  
Frequency Of Occurrence ◽  
Male Sterile ◽  
Brassica Napus L ◽  
Cytoplasmic Male Sterile

No male sterile plants were found in the F1 progeny from crosses between a Diplotaxis muralis cytoplasmic male sterile (mur CMS) semi-winter habit rape (Brassica napus L.) A-line and 101 genetically diverse summer rape cultivars or strains. The frequency of occurrence of mur CMS system maintainer genotypes in summer rape is very low, possibly zero. Key words: Mur CMS system; Brassica napus L.

scholarly journals Promising experimental hybrids of spring rapeseed (Brassica napus L.) for CMS-system of Polima type

2021 ◽  
Vol 186 (2) ◽  
pp. 41-45
Author(s):  
I.O. Pastukhov ◽  
◽  
V.V. Karpachyov ◽  
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Practical Interest ◽  
Restorer Line ◽  
Brassica Napus L ◽  
Is Development ◽  
Fertility Restorers ◽  
Seed Growing ◽  
Research Institute

One of the prior directions in spring rapeseed breeding is development of heterotic hybrids. Seed growing of the most hybrids F1 used in production are often carried out by two types of cytoplasmic male sterility, they are polima and ogura. At the Lipetsk Rapeseed Research Institute, fertility restorers on sterile cytoplasm were made and estimated for the main valuable traits. The purpose of the research was to develop effective restorers, which are necessary for obtaining of highly productive hybrids on the Polima type cytoplasmic male sterility (CMS). The object of research was 56 varieties of Brassica napus L., which were selected in 2013. It is noted that hybrids F1 were more productive than the parental forms and the standards (the varieties Ratnik and Rif). The restorer line LHR-1 is of practical interest for the development of hybrids on the Polima CMS.

Comparison of the effect of nap and pol cytoplasms on the performance of three summer oilseed rape cultivar-derived isoline pairs

1994 ◽  
Vol 74 (4) ◽  
pp. 729-731 ◽  
Author(s):  
P. B. E. McVetty ◽  
R. Pinnisch
Keyword(s):  
Brassica Napus ◽  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Oil Content ◽  
Relative Effect ◽  
Male Sterile ◽  
Negative Effects ◽  
Brassica Napus L ◽  
Male Sterile Cytoplasm ◽  
The One

The pol cytoplasm is a male sterile cytoplasm with potential for use in hybrid summer rape (Brassica napus L.) seed production while the nap cytoplasm is the one most commonly encountered in summer rape cultivars. The objective of this study was to compare the performance of three cultivar-derived summer rape isoline pairs in the nap and pol cytoplasms to determine the relative effect on performance of these two cytoplasms. One nap line yielded significantly more than its corresponding pol line, three nap lines had significantly higher oil content than their corresponding pol lines, two nap lines had significantly higher protein content than their corresponding pol lines, and two nap lines produced significantly more seed energy than their corresponding pol lines. There are pleiotropic negative effects (biological costs) associated with the pol cytoplasm. These negative effects are affected by nuclear genotype and appear to be related to the depth of male sterility expressed in the derived pol A-line. Key words: Cytoplasm cost, Brassica napus L., cytoplasmic male sterility

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