An SSR-based genetic map of pepper (Capsicum annuum L.) serves as an anchor for the alignment of major pepper maps

作者：Mimura Yutaka^*; Inoue Takahiro; Minamiyama Yasuhiro; Kubo Nakao

来源：Breeding Science, 2012, 62(1): 93-98.

DOI：10.1270/jsbbs.62.93

• pepper (Capsicum annuum L.)
• SSR markers
• genetic map
• 12 linkage groups

Of the Capsicum peppers (Capsicum spp.), cultivated C. annuum is the most commercially important, but has lacked an intraspecific linkage map based on sequence-specific PCR markers in accord with haploid chromosome numbers. We constructed a linkage map of pepper using a doubled haploid (DH) population derived from a cross between two C. annuum genotypes, a bell-type cultivar 'California Wonder' and a Malaysian small-fruited cultivar 'LS2341 (JP187992)', which is used as a source of resistance to bacterial wilt (Ralstonia solanacearum). A set of 253 markers (151 SSRs, 90 AFLPs, 10 CAPSs and 2 sequence-tagged sites) was on the map which we constructed, spanning 1,336 cM. This is the first SSR-based map to consist of 12 linkage groups, corresponding to the haploid chromosome number in an intraspecific cross of C. annum. As this map has a lot of PCR-based anchor markers, it is easy to compare it to other pepper genetic maps. Therefore, this map and the newly developed markers will be useful for cultivated C. annum breeding.

• 出版日期2012-3