Genetics and molecular mapping of a male fertility restoration locus (Rfg1) in rye (Secale cereale L.)

1998 ◽  
Vol 97 (1-2) ◽  
pp. 99-102 ◽  
Author(s):  
A. Börner ◽  
V. Korzun ◽  
A. Polley ◽  
S. Malyshev ◽  
G. Melz
Keyword(s):  
Secale Cereale ◽  
Male Fertility ◽  
Molecular Mapping ◽  
Fertility Restoration ◽  
Secale Cereale L ◽  
Male Fertility Restoration

Mapping of genes for male-fertility restoration in ’Pampa’ CMS winter rye (Secale cereale L.)

2000 ◽  
Vol 101 (8) ◽  
pp. 1226-1233 ◽  
Author(s):  
T. Miedaner ◽  
C. Glass ◽  
F. Dreyer ◽  
P. Wilde ◽  
H. Wortmann ◽  
...  
Keyword(s):  
Secale Cereale ◽  
Male Fertility ◽  
Fertility Restoration ◽  
Winter Rye ◽  
Secale Cereale L ◽  
Male Fertility Restoration

MALE STERILITY-FERTILITY RESTORATION SYSTEMS IN TRITICUM DURUM

1978 ◽  
Vol 20 (3) ◽  
pp. 389-398 ◽  
Author(s):  
Tetsuo Sasakuma ◽  
S. S. Maan
Keyword(s):  
Male Fertility ◽  
Triticum Durum ◽  
Fertility Restoration ◽  
Alloplasmic Line ◽  
Male Sterile ◽  
Plant Vigor ◽  
Secale Cereale L ◽  
Triticum Durum Desf ◽  
Lower Plant ◽  
Male Fertility Restoration

Triticum durum Desf. selection 56-1 (2n = 28,AABB) genomes were introduced into the cytoplasms of six species of Triticum, 14 of Aegilops, and one each of Secale and Haynaldia by the backcross method. Of the 22 alloplasmic lines, 14 were completely male sterile, four were partially fertile, and the remaining four, having cytoplasms of T. dicoccoides Körn, Ae. kotschyi Boiss., Ae. variabilis, Eig. or H. villosa L., were of normal fertility. Eleven of these lines headed late and 14 had lower plant height than the control euplasmic T. durum. The 14 male-sterile lines were crossed with five R-lines derived from crosses involving T. nudiglumis Nabalek and T. durum, and male-fertility restoration in F1 hybrids was examined. All five R-lines restored male fertility to six of the male-sterile lines having cytoplasms of Ae. speltoides Tausch., Ae. bicornis Forsk., T. nudiglumis, T. araraticum Jakubz., T. timopheevi Zhuk., or T. zhukovskyi Men. &Er. The male fertility of the alloplasmic line having rye (secale cereale L.) cytoplasm was completely restored by RE 5 and partially by RE 2. Also, RE 5 restored plant vigor to durum plants having rye cytoplasm. None of the five R-lines restored male fertility or plant vigor to any of the six male-sterile lines having cytoplasms of T. boeoticum Boiss., Ae. caudata L., Ae. umbellulata Zhuk., Ae. heldreichii Holzm., Ae. sharonensis Eig., or Ae. triaristata Willd. In general, F2 data from crosses involving four of the male-sterile lines and five R-lines indicated that male fertility restoration was simply inherited.

scholarly journals Genetic architecture of male fertility restoration in a hybrid breeding system of rye (Secale cereale L.)

2021 ◽  
Author(s):  
Nikolaj Vendelbo ◽  
Khalid Mahmood ◽  
Pernille Sarup ◽  
Peter Kristensen ◽  
Jihad Orabi ◽  
...  
Keyword(s):  
Breeding System ◽  
Secale Cereale ◽  
In Silico ◽  
Male Fertility ◽  
Fertility Restoration ◽  
Association Studies ◽  
Type Systems ◽  
Hybrid Breeding ◽  
Genome Wide Association Studies ◽  
Male Fertility Restoration

Abstract The ‘Gülzow’ (G) type cytoplasmic male sterility (CMS) system in hybrid rye (Secale cereale L.) breeding exhibits a strong and environmentally stable restoration of male fertility (Rf). While having received little scientific attention, three G-type Rf genes had been identified on 4RL (Rfg1) and two minor genes on 3R (Rfg2) and 6R (Rfg3) chromosome. Here, we report a comprehensive investigation of the genetics underlying restoration of male fertility in a large G-type CMS breeding system using a palette of complementing forward and reverse genetic analysis. This includes (i) genome wide association studies (GWAS) on a G-type germplasm, (ii) GWAS on a biparental mapping population, (iii) in silico identification of Rf-like pentatricopeptide repeat (RFL-PPR) genes and their expressed in G-type rye hybrids, and (iv) mining patterns in linkage disequilibrium. Our findings provide compelling evidence of a novel major G-type non-PPR Rf gene on the 3RL chromosome. In the in silico analysis, we identified 22 RFL-PPR of which 15 were expressed in the transcriptome of G-type hybrids. Our findings provides a novel insight into the underlying genetics of male fertility restoration in a G-type CMS system in rye. The discovery made in this study is distinct to known P- and C-type systems in rye in addition to known CMS systems in barley and wheat. This study constitutes a steppingstone towards understanding the restoration of male fertility in G-type CMS system and a potential resources for addressing the inherent issues of the P-type system.

scholarly journals The Dynamics of Gynodioecy in Plantago lanceolatu L. II. Mode of Action and Frequencies of Restorer Alleles

Genetics ◽  
1997 ◽  
Vol 147 (3) ◽  
pp. 1317-1328
Author(s):  
Anita A de Haan ◽  
Hans P Koelewijn ◽  
Maria P J Hundscheid ◽  
Jos M M Van Damme
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Allele Frequency ◽  
Mode Of Action ◽  
Male Fertility ◽  
Fertility Restoration ◽  
Plantago Lanceolata ◽  
Allele Frequencies ◽  
Male Sterile ◽  
Male Fertility Restoration

Male fertility in Plantago lanceolata is controlled by the interaction of cytoplasmic and nuclear genes. Different cytoplasmic male sterility (CMS) types can be either male sterile or hermaphrodite, depending on the presence of nuclear restorer alleles. In three CMS types of P. lanceolata (CMSI, CMSIIa, and CMSIIb) the number of loci involved in male fertility restoration was determined. In each CMS type, male fertility was restored by multiple genes with either dominant or recessive action and capable either of restoring male fertility independently or in interaction with each other (epistasis). Restorer allele frequencies for CMSI, CMSIIa and CMSIIb were determined by crossing hermaphrodites with “standard” male steriles. Segregation of male steriles vs. non-male steriles was used to estimate overall restorer allele frequency. The frequency of restorer alleles was different for the CMS types: restorer alleles for CMSI were less frequent than for CMSIIa and CMSIIb. On the basis of the frequencies of male steriles and the CMS types an “expected” restorer allele frequency could be calculated. The correlation between estimated and expected restorer allele frequency was significant.

scholarly journals Effect of drought stress on male fertility restoration in A 3 CMS-inducing cytoplasm of sorghum

2017 ◽  
Vol 5 (4) ◽  
pp. 282-289 ◽  
Author(s):  
Valentin V. Kozhemyakin ◽  
Lev A. Elkonin ◽  
Jeffery A. Dahlberg
Keyword(s):  
Drought Stress ◽  
Male Fertility ◽  
Fertility Restoration ◽  
Male Fertility Restoration

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.

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