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Title: Genetic relationship in mulberry (Morus L.) inferred through PCR-RFLP and trnD-trnT sequence data of chloroplast DNA. Author: Hu D, Zhang P, Sun YL, Zhang S, Wang Z, Chen C. Journal: Biotechnol Biotechnol Equip; 2014 May 04; 28(3):425-430. PubMed ID: 26019528. Abstract: Ten universal primer pairs of the plant chloroplast genome were used to amplify the chloroplast DNA (cpDNA) non-coding regions in eight mulberry (Morus spp.) genotypes, including M. mongolica, M. bombycis, M. alba, M. atropurpurea and M. multicaulis. Subsequently, the polymerase chain reaction (PCR) products were digested by seven restriction enzymes and the trnD-trnT fragment for sequence alignment, and the variations were expected to provide the genetic information for system classification. The results from this study showed that: (1) 10 cpDNA primer pairs could be used for successful amplification in the tested materials, with approximately 17.1 kb of the chloroplast genome analysed. The 152 marker loci were detected by 70 primer/restriction endonuclease combinations, among which the trnD-trnT non-coding region digested by AluI, HinfI, MvaI and RsaI was detected by visible fragment length variation in different genotypes of the genus Morus. (2) eight Morus L. genotypes were divided into two groups based on the digesting pattern discrepancy through cpDNA. The M. multicaulis genotypes displayed diversity on an intraspecies level. 'Nongsang No.12' was identical with the female parent 'Beiqu No.1' (M. atropurpurea) in the surveyed sequence, but different from the male parent 'Tongxiangqing' (M. multicaulis), suggesting that the cpDNA was maternal inheritance in Morus L. (3) There were two deletion fragments (451-456 bp; 840-863bp) and six base point mutations in the trnD-trnT region based on homologous sequence alignment. The sequence of trnD-trnT in the cpDNA of mulberry could provide more genetic information for phylogenetic analysis and pedigree identification.[Abstract] [Full Text] [Related] [New Search]