The chromosome region including the earliness per se locus Eps-A[sup]m1 affects the duration of early developmental phases and spikelet number in diploid wheat

Earliness per se genes are those that regulate flowering time independently of vernalization and photoperiod, and are important for the fine tuning of flowering time and for the wide adaptation of wheat to different environments. The earliness per se locus Eps-Am 1 was recently mapped within a 0.8 c...

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Bibliographic Details
Published in:Journal of experimental botany 2008-10, Vol.59 (13), p.3595
Main Authors: Lewis, S, Faricelli, M E, Appendino, M L, Valárik, M, Dubcovsky, J
Format: Article
Language:English
Online Access:Get full text
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Summary:Earliness per se genes are those that regulate flowering time independently of vernalization and photoperiod, and are important for the fine tuning of flowering time and for the wide adaptation of wheat to different environments. The earliness per se locus Eps-Am 1 was recently mapped within a 0.8 cM interval on chromosome 1A[sup]mL of diploid wheat Triticum monococcum L., and it was shown that its effect was modulated by temperature. In this study, this precise mapping information was used to characterize the effect of the Eps-Am 1 region on both duration of different developmental phases and spikelet number. Near isogenic lines (NILs) carrying the Eps-Am 1-l allele from the cultivated accession DV92 had significantly longer vegetative and spike development phases (P
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/ern209