Abstract
Intergeneric hybridization is an effective way of improving crop resistance against biotic and tolerance to abiotic stresses. Here, we describe an intergeneric hybrid between Chrysanthemum morifolium ‘Nannongxiaoli’ and Artemisia vulgaris ‘Variegata’ using ovule rescue. Chromosome counting confirmed that out of the 124 regenerated plantlets, 19 were genuine hybrids, carrying the expected hybrid number of somatic chromosomes (45, representing 27 from ‘Nannongxiaoli’ and 18 from ‘Variegata’). The 19 genuine hybrids were vigorous, flowered normally and possessed the cut flower characteristics of ‘Nannongxiaoli’. The hybrids were more resistant against both aphid infestation and Alternaria leaf spot inoculation than the ‘Nannongxiaoli’ parent, but less than the ‘Variegata’ parent.
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Acknowledgments
This study is funded by 948 project (2013-S13), the Program for New Century Excellent Talents in University of the Chinese Ministry of Education (NCET-10-0492), Independent Innovation of Agricultural Sciences in Jiangsu Province [CX(12)2020], the Program for Science and Technology Support, Jiangsu, China, (BE2012350, BE2011325).
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Zhu, Wy., Zhang, F., Chen, Sm. et al. Intergeneric hybrids between Chrysanthemum morifolium ‘Nannongxiaoli’ and Artemisia vulgaris ‘Variegata’ show enhanced resistance against both aphids and Alternaria leaf spot. Euphytica 197, 399–408 (2014). https://doi.org/10.1007/s10681-014-1076-6
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DOI: https://doi.org/10.1007/s10681-014-1076-6