From the field to the flowerbed to the lab
Tashiro, Rebecca Michiko
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Ornamental white clover (Trifolium repens L.) can be developed due to the plant’s spreading growth habit and morphological traits that can be combined to create attractive genotypes. Four ornamental genotypes were developed and released after two years of field evaluation. These genotypes were selected due to their highly ornamental phenotypes and comparable or superior performance when compared to currently available ornamental cultivars. Classic inheritance studies are inconclusive in allotetraploid white clover. Molecular markers can aid locating trait loci at the molecular level. A mapping population containing eight leaf traits was screened for molecular markers and phenotyped. By utilizing published maps, linkage between molecular markers and two different traits were found. The red midrib trait is controlled by dominant genes on two different linkage groups, LG B1 and LG G2. The multifoliolate trait is controlled by two recessive genes on homoeologous groups H1 and H2.