Show simple item record

dc.contributor.author I. P. en_US
dc.contributor.author L. B. en_US
dc.contributor.author A. H. en_US
dc.contributor.author M. O. en_US
dc.contributor.author I. P. en_US
dc.contributor.author D. en_US
dc.date.accessioned 2009-05-21T10:12:09Z
dc.date.available 2009-05-21T10:12:09Z
dc.date.issued 2008-05-01 en_US
dc.identifier http://dx.doi.org/10.1111/j.1469-8137.2008.02413.x en_US
dc.identifier.citation Armstead , I P , Turner , L B , Marshall , A H , Humphreys , M O , King , I P & Thorogood , D 2008 , ' Identifying genetic components controlling fertility in the outcrossing grass species perennial ryegrass (Lolium perenne L.) by quantitative trait loci analysis and comparative genomics ' New Phytologist , vol 178 , no. 3 , pp. 559-571 . , 10.1111/j.1469-8137.2008.02413.x en_US
dc.identifier.other PURE: 101777 en_US
dc.identifier.other dspace: 2160/2286 en_US
dc.identifier.uri http://hdl.handle.net/2160/2286
dc.description.abstract Mutational load and resource allocation factors and their effects on limiting seed set were investigated in ryegrass by comparative mapping genomics and quantitative trait loci (QTL) analysis in two perennial ryegrass (Lolium perenne) mapping families sharing common genetic markers. Quantitative trait loci for seed-set were identified on chromosome (LG) 7 in both families and on LG4 of the F2/WSC family. On LG7, seed-set and heading date QTLs colocalized in both families and cannot be unequivocally resolved. Comparative genomics suggests that the LG7 region is syntenous to a region of rice LG6 which contains both fertility (S5n) and heading date (Hd1, Hd3a) candidate genes. The LG4 region is syntenous to a region of rice LG3 which contains a fertility (S33) candidate gene. QTL maxima for seed-set and heading date on LG4 in the F2/WSC family are separated by c. 8 cm, indicating distinct genetic control. Low seed set is under the control of recessive genes at both LG4 and LG7 locations. The identification of QTLs associated with seed set, a major component of seed yield in perennial ryegrass, indicates that mutational load associated with these genomic regions can be mitigated through marker-assisted selection. en_US
dc.format.extent 13 en_US
dc.relation.ispartof New Phytologist en_US
dc.subject candidate gene en_US
dc.subject comparative genomics en_US
dc.subject mutational load en_US
dc.subject quantitative trait loci (QTLs) en_US
dc.subject resource allocation en_US
dc.subject rice en_US
dc.subject seed set en_US
dc.subject synteny en_US
dc.title Identifying genetic components controlling fertility in the outcrossing grass species perennial ryegrass (Lolium perenne L.) by quantitative trait loci analysis and comparative genomics en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

Statistics