AN UPDATED CONSENSUS MAP FOR FLOWERING TIME QTLS IN MAIZE

作者：Salvi Silvio^*; Castelletti Sara; Tuberosa Roberto

来源：Maydica, 2009, 54(4): 501-512.

• Flowering time
• Marker-assisted selection
• Meta-analysis
• QTL
• Zea mays

The genetic control of flowering time has been addressed by many quantitative trait locus (QTL) studies. Here, we summarise the results from 29 independent studies reporting information on 441 QTLs. The production of a QTL consensus map enabled us to identify 59 chromosome regions distributed on all chromosomes and shown to be frequently involved in the genetic control of flowering time and related traits. Additionally, the survey enabled us to empirically verify several theoretical expectations about the general outcome of QTL studies, such as mean and modal QTL number (5.1 and 3-4, respectively) per experiment, proportion of phenotypic variance explained and map resolution. The lack of molecular information about most QTLs in terms of haplotype/allele largely precludes a more complete description and understanding of the genetic architecture of flowering time in maize.

• 出版日期2009