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ID 52274
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Author
Shahinnia, Fahimeh
Sayed-Tabatabaei, Badraldin Ebrahim
Pourkheirandish, Mohammad
Komatsuda, Takao
Abstract
The lateral spikelets of two-rowed barley are reduced in size and sterile, but in six-rowed barley all three spikelets are fully fertile. The trait is largely controlled by alleles at the vrs1 locus on chromosome arm 2HL, as modified by the allele present at the I locus on chromosome arm 4HS. Molecular markers were developed to saturate the 4HS region by exploiting expressed sequence-tags, either previously mapped in barley to this region, or present in the syntenic region of rice chromosome 3. Collinearity between rice and barley was strong in the 4.8 cM interval BJ468164-AV933435 and the 10 cM interval AV942364-BJ455560. A major QTL for lateral spikelet fertility (the I locus) explained 44% of phenotypic variance, and was located in the interval CB873567-BJ473916. The genotyping of near-isogenic lines for I placed the locus in a region between CB873567 and EBmac635, and therefore the most likely position of the I locus was proximal to CB873567 in a 5.3 cM interval between CB873567-BJ473916.
Keywords
lateral spikelet fertility
row-type
mapping
rice genome
synteny
Published Date
2009-12
Publication Title
Breeding Science
Volume
volume59
Issue
issue4
Start Page
383
End Page
390
ISSN
1344-7610
Content Type
Journal Article
language
英語
Copyright Holders
Copyright © 2009 by JAPANESE SOCIETY OF BREEDING
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publisher
Refereed
True
DOI
Web of Science KeyUT