For developing molecular markers linked to white rust resistance in chrysanthemum, RAPD and AFLP were carried out in ‘Puma White’ x ‘Dancer’ mapping population through Bulked Segregant Analysis (BSA) methods. 10 resistant and 10 susceptible individuals were selected and bulked. And then, these bulks were screened using 280 RAPD primers (10 mer) with two parents. As a result of BSA-RAPD, 25 Dancer/R-bulk specific bands in 21 primers and 22 Puma White/S-bulk specific bands in 18 primers were selected. These resistant or susceptible specific bands were screened in 10 resistant and 10 susceptible individuals. Except OPI-13520, all bands were confirmed as false positive. OPI-13520 band presumed as closely linked marker to white rust disease resistance was tested in whole population. Among 187 progenies, just six off-springs did not correspond with phenotypic data. Based on expected phenotypic segregation ratios in the pseudo F1 progenies, it was assumed that a duplex type of white rust resistance in ‘Dancer’ (RRrrrr) were in combination with a duplex type of OPI-13520 marker. As a result of x2-test of independence between resistance gene and OPI-13520 marker, x2 score is 76.08 and probability is 2.13x10-16. And resistance gene and OPI-13520 marker were assumed to be linked in coupling phase. The value of recombination fraction obtained by successive trials and second derivative of log likelihood was 0.03832±0.0271.

국립원예특작과학원에서는 2011년 거베라 신품종 ‘Purple Queen’을 품종 육성하였다. ‘Purple Queen’은 2007년 절화장이 긴 ‘Selma’와 자주색 반겹꽃 ‘Marathon’을 교배하여 얻은 실생계통으로부터 2007년부터 2011년까지 5년 동안의 생육특성검정을 거쳐 선발된 절화용 품종이다. 꽃은 암갈심의 자주색(RHS RP66B)으로 평균 직경이 11.4 cm인 반겹꽃 대륜계통이며, 내화경과 화심장은 각각 6.1 cm와 2.3 cm이다. 화경장은 50.3 cm 정도로 매우 길며, 꽃목 직경은 5.0 mm 정도로 굵다. 절화수명은 12.2일로 대조품종에 비해 3일 이상 , 연간 채화량도 51.4본/주로 대조품종보다 4.4본/주 더 많은 다수성 품종이다.