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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

Journal Article

Mapping and validation of microsatellite markers linked to sugary1 and shrunken2 genes in maize (Zea mays L.)  [2015]

Hossain, Firoz; Nepolean, T.; Vishwakarma, A. K.; Pandey, N.; et al.

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Sweet corn has emerged as one of the popular choices as fresh and processed vegetables, worldwide. Two genes namely, sugary1 (su1) and shrunken2 (sh2) that cause significant increase in sugar levels of endosperm, have been extensively used in sweet corn cultivar development. In order to identify and validate microsatellite/SSR markers linked to su1 and sh2, F₂mapping populations were generated between wild type and mutant (sugary or shrunken) genotypes. Bulk segregant analysis (BSA) in three mapping populations mapped su1 on short arm of chromosome 4 (bin. 4.05), while sh2 could be located on long arm of chromosome 3 (bin 3.08) using two mapping populations. The analysis identified seven linked SSR markers for su1 and four SSR markers linked to sh2. Across populations, umc2061 was identified as the nearest marker from su1 with genetic distance of 0.3, 0.6 and 1.6 cM, while umc2276 could be located at 1.2 and 1.5 cM from sh2. These two markers can be effectively utilized in marker-assisted selection of sweet corn trait.

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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2015
Volume:
24
Issue:
2
Start Page:
135
End Page:
142
Publisher:
Springer-Verlag
All titles:
" Mapping and validation of microsatellite markers linked to sugary1 and shrunken2 genes in maize (Zea mays L.) "

From the journal

Journal of plant biochemistry and biotechnology

ISSN : 0971-7811