RFLP-based genetic map of rye (Secale cereale L.) chromosome 1R

1991 ◽  
Vol 82 (2) ◽  
pp. 174-178 ◽  
Author(s):  
M. L. Wang ◽  
M. D. Atkinson ◽  
C. N. Chinoy ◽  
K. M. Devos ◽  
R. L. Harcourt ◽  
...  
2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 588-589
Author(s):  
O.A. Baranova ◽  
A.P. Dmitriev ◽  
A.V. Voylocov ◽  
O.V. Solodukhina

Five resistance genes to single-pustule isolates Nos. 12, 81,108 and 7 of brown rust were mapped on 1R chromosome of rye using two different F<sub>2</sub> populations. Under segregation analysis it was found linkage between genes controlling resistance to single-pustule isolates No. 12, 81, 108 and 25 and isozyme locus Prx7, which to be localized on chromosome 1R. The recombination frequencies are 0.32, 0.28, 0.29 and 0.32 correspondingly. Also we were found linkage between Prx7 and gene, controlling resistance to single-pustule isolate No. 7. Recombination frequency in this case was equal 0.10 and 0.29 in dependence on analyzing hybrids.


1984 ◽  
Vol 26 (4) ◽  
pp. 409-414 ◽  
Author(s):  
M. C. Cermeño ◽  
J. Orellana ◽  
J. R. Lacadena

The loss of bound chromosome arms through early, middle, and late metaphase I has been analyzed in a plant of inbred rye (Secale cereale L.) heterozygous for a terminal heterochromatic C-band of the long arm of chromosome 1R. From the increase in the number of univalent pairs due to bound arm loss, and from the comparison between the frequencies of bound arms at metaphase I and recombinant chromosomes at anaphase I, it is concluded that some of the chromosome bonds appearing at metaphase I are actually nonchiasmate associations that can be considered as remnants of prophase pairing. Conclusions concerning recombination obtained solely from the analysis of chiasma frequency measured as bound arms may be invalid.Key words: inbred rye, C-heterochromatin, meiotic pairing, nonchiasmate bonds.


BMC Genomics ◽  
2008 ◽  
Vol 9 (1) ◽  
pp. 237 ◽  
Author(s):  
Hana Šimková ◽  
Jan Šafář ◽  
Pavla Suchánková ◽  
Pavlína Kovářová ◽  
Jan Bartoš ◽  
...  

Chromosoma ◽  
1999 ◽  
Vol 108 (4) ◽  
pp. 250-255 ◽  
Author(s):  
Yihua Zhou ◽  
Zanmin Hu ◽  
Benyuan Dang ◽  
Huai Wang ◽  
Xiangdong Deng ◽  
...  

Author(s):  
Agnieszka Niedziela ◽  
Waldemar Brukwiński ◽  
Piotr Tomasz Bednarek

AbstractCytoplasmic male sterility (CMS) is a widely applied plant breeding tool for hybrid seed production. The phenomenon is often caused by chimeric genes with altered open reading frames (ORFs) located in the mitochondrial genomes and expressed as novel genotoxic products that induce pollen abortion. The fertility of CMS plants can be restored by nuclear-encoded genes that inhibit the action of ORFs responsible for pollen sterility. A recombinant inbred line (RIL) mapping population S64/04/01, encompassing 175 individuals, was used for genetic map construction and identification of quantitative trait loci (QTLs) responsible for fertility restoration in rye (Secale cereale L.) with CMS Pampa. The genetic map of all seven rye chromosomes included 15,516 SNP and silicoDArT markers and covered 1070.5 cm. Individual QTLs explaining 60% and 5.5% of the fertility trait’s phenotypic variance were mapped to chromosomes 4R (QRft-4R) and 5R (QRft-5R), respectively. Association mapping identified markers with the highest R2 value of 0.58 (p value = 2.21E-28). Markers showing the highest associations with the trait were also mapped to the 4R chromosome within the QRft-4R region. Based on marker sequence homology, putative genes involved in pollen fertility restoration were suggested. Five silicoDArTs were converted into PCR-based markers for further breeding purposes.


2001 ◽  
Vol 102 (5) ◽  
pp. 709-717 ◽  
Author(s):  
V. Korzun ◽  
S. Malyshev ◽  
A. V. Voylokov ◽  
A. Börner

Genome ◽  
1995 ◽  
Vol 38 (5) ◽  
pp. 889-893 ◽  
Author(s):  
W. Busch ◽  
R. G. Herrmann ◽  
R. Martin

The Sec-1 locus (ω-secalin) of rye (Secale cereale L.) was mapped in the satellite of the short arm of chromosome 1R using fluorescence in situ hybridization and a genomic probe called pSec2B. Sec-1 is located in the middle of the satellite at the junction of the proximal euchromatic and the distal heterochromatic regions. Double hybridization experiments using rDNA and pSec2B showed that the NOR spans over the secondary constriction of the short arm of chromosome 1R and that there is a clearly visible gap between the NOR and Sec-1. Heterologous hybridization of pSec2B to barley visualized the B-hordein locus on chromosome 1H.Key words: fluorescence in situ hybridization, physical mapping, genetic mapping, secalin, rye, B-hordein, rDNA.


1991 ◽  
Vol 82 (1) ◽  
pp. 27-32 ◽  
Author(s):  
C. Benito ◽  
F. J. Gallego ◽  
C. Zaragoza ◽  
J. M. Frade ◽  
A. M. Figueiras

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