NDLI: Efficient Induction of Wheat-Agropyron cristatum6P Translocation Lines and GISH Detection

Content Provider	PubMed Central
Author	Song, Liqiang Jiang, Lili Han, Haiming Gao, Ainong Yang, Xinming Li, Lihui Liu, Weihua
Editor	Khalil, Kashkush
Copyright Year	2013
Abstract	The narrow genetic background restricts wheat yield and quality improvement. Thewild relatives of wheat are the huge gene pools for wheat improvement and canbroaden its genetic basis. Production of wheat-alien translocation lines cantransfer alien genes to wheat. So it is important to develop an efficient methodto induce wheat-alien chromosome translocation. Agropyron cristatum (P genome)carries many potential genes beneficial to disease resistance, stress toleranceand high yield. Chromosome 6P possesses the desirable genesexhibiting good agronomic traits, such as high grain number per spike, powderymildew resistance and stress tolerance. In this study, the wheat- A . cristatum disomic addition wasused as bridge material to produce wheat- A . cristatum translocation linesinduced by 60Co-γirradiation. The results of genomic insitu hybridization showed that 216 plants contained alienchromosome translocation among 571 self-pollinated progenies. The frequency oftranslocation was 37.83%, much higher than previous reports. Moreover, variousalien translocation types were identified. The analysis of M2 showedthat 62.5% of intergeneric translocation lines grew normally without losing thetranslocated chromosomes. The paper reported a high efficient technical methodfor inducing alien translocation between wheat and Agropyron cristatum . Additionally, thesetranslocation lines will be valuable for not only basic research on geneticbalance, interaction and expression of different chromosome segments of wheatand alien species, but also wheat breeding programs to utilize superioragronomic traits and good compensation effect from alien chromosomes.
Related Links	http://dx.doi.org/10.1371/journal.pone.0069501
Starting Page	69501
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	7
Volume Number	8
Language	English
Publisher	Public Library of Science
Publisher Date	2013-07-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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