Elements of genotype-environment interaction: genetic components of the photoperiod response in maize.

Moutiq, Rkia; Ribaut, Jean-Marcel; Edmeades, G.O.; Krakowsky, Matthew D.; Lee, M.

doi:10.1079/9780851996011.0257

Cited by 13 publications

(29 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chromosome 1 QTL -ZmPR1: An important flowering time QTL in the ZmPR1 region was previously detected in several populations (Beavis et al 1994;Chardon et al 2004;Blanc et al 2006;Briggs et al 2007;Buckler et al 2009); however, neither of the two previous studies specifically addressing tropical maize photoperiod response detected a significant QTL in this region (Table S8; Moutiq et al 2002;Wang et al 2008), suggesting that ZmPR1 does not segregate in all temperate 3 tropical maize populations, as observed by Buckler et al (2009) (Table S8). This region includes the major flowering time and height QTL Vgt1, which was originally identified genetically on the basis of an allelic difference between temperate maize lines (VlA˘dut xu et al 1999;Salvi et al 2007), although the position of Vgt1 on our map is uncertain because of disagreements in the maize genome database.…”

Section: Resultsmentioning

confidence: 62%

“…Chromosome 9 QTL-ZmPR3: ZmPR3 was also observed to affect flowering time and photoperiodic QTL in previous maize studies (Table S8; Moutiq et al 2002;Chardon et al 2004;Briggs et al 2007; but not Wang et al 2008). Several homologs of Arabidopsis and rice flowering time genes are located within the ZmPR3 interval, including CONSTANS of Zea mays1 (CONZ1), the putative hemeoxygenase HY1/SE5, and a homolog of circadian clock-associated genes TOC1/PRR3/PRR5/ PRR7/PRR9 (Chardon et al 2004;Cockram et al 2007;Miller et al 2008).…”

Section: Resultsmentioning

confidence: 99%

“…Previous studies have consistently detected major photoperiodic response, flowering time, PH, and TLN QTL in the ZmPR4 QTL region (Abler et al 1991;Moutiq et al 2002;Blanc et al 2006;Briggs et al 2007;Lauter et al 2008;Wang et al 2008;Ducrocq et al 2009). ZmPR4 is syntenic to the major photoperiodic QTL of sorghum (Ma1; Ulanch 1999), which has undergone intense directional selection in temperateadapted sorghum populations (Klein et al 2008).…”

Section: Resultsmentioning

confidence: 99%

“…Photoperiodic QTL have been mapped previously in individual biparental maize mapping populations (Koester et al 1993;Moutiq et al 2002;Wang et al 2008;Ducrocq et al 2009). Such studies are informative with respect to the parents from which the populations were derived, but often do not reflect the genetic heterogeneity of broader genetic reference populations (Holland 2007).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Genetic Control of Photoperiod Sensitivity in Maize Revealed by Joint Multiple Population Analysis

et al. 2010

View full text Add to dashboard Cite

Variation in maize for response to photoperiod is related to geographical adaptation in the species. Maize possesses homologs of many genes identified as regulators of flowering time in other species, but their relation to the natural variation for photoperiod response in maize is unknown. Candidate gene sequences were mapped in four populations created by crossing two temperate inbred lines to two photoperiod-sensitive tropical inbreds. Whole-genome scans were conducted by high-density genotyping of the populations, which were phenotyped over 3 years in both short-and long-day environments. Joint multiple population analysis identified genomic regions controlling photoperiod responses in flowering time, plant height, and total leaf number. Four key genome regions controlling photoperiod response across populations were identified, referred to as ZmPR1-4. Functional allelic differences within these regions among phenotypically similar founders suggest distinct evolutionary trajectories for photoperiod adaptation in maize. These regions encompass candidate genes CCA/LHY, CONZ1, CRY2, ELF4, GHD7, VGT1, HY1/SE5, TOC1/PRR7/PPD-1, PIF3, ZCN8, and ZCN19.

show abstract

Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Genetic Control of Photoperiod Sensitivity in Maize Revealed by Joint Multiple Population Analysis

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Among these QTL, a region of chromosome 10 appears of major importance and has been detected in multiple genetic backgrounds (Lubberstedt et al 1997;Rebai et al 1997;Bohn et al 2000;Moutiq et al 2002;Blanc et al 2006;Wang et al 2008) including a cross between maize and its wild ancestor teosinte (Briggs et al 2007). Recently, K. Chenu, A. Bouchez and C. Giauffret (unpublished results; technical report available upon request from the corresponding author or C. Giauffret) conducted a QTL detection in a population developed from a cross between the dayneutral European Flint inbred line FV286 and the shortday highland tropical line FV331.…”

mentioning

confidence: 99%

Fine Mapping and Haplotype Structure Analysis of a Major Flowering Time Quantitative Trait Locus on Maize Chromosome 10

et al. 2009

View full text Add to dashboard Cite

Flowering time is a major adaptive trait in plants and an important selection criterion for crop species. In maize, however, little is known about its molecular basis. In this study, we report the fine mapping and characterization of a major quantitative trait locus located on maize chromosome 10, which regulates flowering time through photoperiod sensitivity. This study was performed in near-isogenic material derived from a cross between the day-neutral European flint inbred line FV286 and the tropical short-day inbred line FV331. Recombinant individuals were identified among a large segregating population and their progenies were scored for flowering time. Combined genotypic characterization led to delimit the QTL to an interval of 170 kb and highlighted an unbalanced recombination pattern. Two bacterial artificial chromosomes (BACs) covering the region were analyzed to identify putative candidate genes, and synteny with rice, sorghum, and brachypodium was investigated. A gene encoding a CCT domain protein homologous to the rice Ghd7 heading date regulator was identified, but its causative role was not demonstrated and deserves further analyses. Finally, an association study showed a strong level of linkage disequilibrium over the region and highlighted haplotypes that could provide useful information for the exploitation of genetic resources and marker-assisted selection in maize.

show abstract

Recovery of exotic alleles in semiexotic maize inbreds derived from crosses between Latin American accessions and a temperate line

2004

View full text Add to dashboard Cite

Genetic diversity of elite maize germplasm in the United States is narrow relative to the species worldwide. Tropical maize represents the most diverse source of germplasm. To incorporate germplasm from tropical maize landraces into the temperate gene pool, 23 Latin American maize accessions were crossed to temperate inbred line Mo44. During inbred line development, selection was practiced in temperate environments, potentially resulting in the loss of substantial proportions of tropical alleles. Genotyping 161 semiexotic inbreds at 51 simple sequence repeat (SSR) loci permitted the classification of their alleles as either Mo44 or tropical and allowed estimation of the proportion of detectable tropical alleles retained in these lines. On average, the percentage of detectable tropical alleles ranged among lines from 15% to 56%, with a mean of 31%. These are conservative, lower-bound estimates of the proportion of tropical germplasm within lines, because it is not known how frequently Mo44 and the tropical maize accession parental populations shared SSR alleles. These results suggest that substantial proportions of exotic germplasm were recovered in the semiexotic lines, despite their selection in temperate environments. The percent of tropical germplasm in semiexotic lines was not correlated to grain yield or moisture of lines testcrossed to a Corn Belt Dent tester, indicating that the incorporation of a substantial percentage of tropical germplasm in an inbred line does not necessarily negatively impact its combining ability. Thus, tropical maize accessions represent a good source of exotic germplasm to broaden the genetic base of temperate maize without hindering agronomic performance.

show abstract

Elements of genotype-environment interaction: genetic components of the photoperiod response in maize.

Cited by 13 publications

References 0 publications

Genetic Control of Photoperiod Sensitivity in Maize Revealed by Joint Multiple Population Analysis

Genetic Control of Photoperiod Sensitivity in Maize Revealed by Joint Multiple Population Analysis

Fine Mapping and Haplotype Structure Analysis of a Major Flowering Time Quantitative Trait Locus on Maize Chromosome 10

Recovery of exotic alleles in semiexotic maize inbreds derived from crosses between Latin American accessions and a temperate line

Contact Info

Product

Resources

About