UseoftheEndospermBalanceNumber(EBN)inPotatoGeneticsandBreeding
Use of the Endosperm Balance Number(EBN) in Potato Genetics and Breeding作者机构：Deptartment of Soil Plant and Environmental Sciences （DISSPA） University of Naples “Federico Ⅱ” Via Universita 100 80055 Portici Italy Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 China
出 版 物：《中国马铃薯》 (Chinese Potato Journal)
年 卷 期：2006年第20卷第3期
页 面：170-175页
摘 要：Solanum species have a wide geographic distribution and show a large range of ecological adaptation,and thus have developed strong resistances to a wide range of pests,diseases and abiotic *** represent unique material as a source of useful genes and allelic diversity for the tetraploid cultivated potato(Solanum tuberosum).Knowledge of the endosperm balance number(EBN) incompatibility system may be extremely useful for breeders in designing specific crosses schemes for potato *** has been experimentally assigned to Solanum species after crosses with standard species whose EBN was arbitrarily established,and assuming the 2 ∶ 1 ratio as a prerequisite for normal endosperm *** role of the EBN incompatibility system in potato breeding is strongly complemented by 2n *** 2n gametes can allow inter-EBN crosses and thus gene flow between sexually isolated *** complementary role of EBN and 2n gametes not only facilitates gene introgression between inter-EBN species,but also maintains the ploidy integrity of the two parental *** are given to illustrate how to use EBN in crossing schemes designed for 2x(2EBN) and 2x(1EBN) *** increasing in the interest in exploiting exotic germplasm for breeding purposes,it is strongly believed that an understanding of EBN can be used for interspecific gene transfer in any crop species where an EBN-like system operates.
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