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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1270/jsbbs.64.309
|2 doi
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|e rakwb
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|a eng
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1 |
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|a Sakata, Mitsukazu
|e verfasserin
|4 aut
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|a Two linked genes on rice chromosome 2 for F1 pollen sterility in a hybrid between Oryza sativa and O. glumaepatula
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 27.04.2015
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Hybrid incompatibility plays an important role in establishment of post-zygotic reproductive isolation. To unveil genetic basis of hybrid incompatibilities between diverged species of genus Oryza AA genome species, we conducted genetic dissection of hybrid sterility loci, S22(t), which had been identified in backcross progeny derived from Oryza sativa ssp. japonica (recurrent parent) and South American wild rice O. glumaepatula near the end of the short arm of chromosome 2. The S22(t) region was found to be composed of two loci, designated S22A and S22B, that independently induce F1 pollen sterility. Pollen grains containing either of the sterile alleles (S22A-glum (s) or S22B-glum (s) ) were sterile if produced on a heterozygous plant. No transmission of the S22A-glum (s) allele via pollen was observed, whereas a low frequency of transmission of S22B-glum (s) was observed. Cytological analysis showed that the sterile pollen grains caused by S22A could reach the bicellular or tricellular stage, and the nearly-sterile pollen grains caused by S22B could reach the tricellular stage. Our genetic analysis showed repulsion linkage effect is possible to induce strong reproductive barrier by high pollen sterility based on recombination value and transmission ratio of hybrid sterility gene to the progeny was influenced by frequency of competitors on fertilization
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|a Journal Article
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|a Oryza glumaepatula
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|a hybrid sterility
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| 650 |
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|a pollen
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| 650 |
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|a repulsion
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| 650 |
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|a rice
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1 |
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|a Yamagata, Yoshiyuki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Doi, Kazuyuki
|e verfasserin
|4 aut
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| 700 |
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|a Yoshimura, Atsushi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Breeding science
|d 1998
|g 64(2014), 4 vom: 01. Dez., Seite 309-20
|w (DE-627)NLM098238299
|x 1344-7610
|7 nnns
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| 773 |
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|g volume:64
|g year:2014
|g number:4
|g day:01
|g month:12
|g pages:309-20
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|u http://dx.doi.org/10.1270/jsbbs.64.309
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