Molecular Phytogeny of the True Citrus Fruit Trees Group (Aurantioideae, Rutaceae) as Inferred from AFLP Fingerprints and Plastid DNA Sequence
To address problem in Citrus taxonomy, it is essential to have a better understanding of the phylogenetic relationships between Citrus and its closely related genera. The AFLP patterns and three cpDNA fragments (Trnh- TrnF, PsbH- PetB and TrnS - TmG) of thirty genotypes carefully chosen from the six genera of the true citrus fruit trees group were analyzed. In present study, a molecular phylogenetic tree of the true citrus fruit trees group was reconstructed based on AFLP fingerprints and plastid DNA sequences, with Murraya paniculata (L.)Jack. , Atalantia buxifolia Correa. and Severinia buxifolia (Poir.)Tenore as outgroups. Our results confirmed that the true citrus fruit trees group was monophyletic and supported the division of the group into genera as previously suggested based on morphological characters, except that the genus Fortunella was nested within the genus Citrus cluster as a monophyletic sub-clade in the AFLP dendrogram. Both AFLP and cpDNA data suggested that Poncirus may be the genus separated from the other five genera in the group. Our AFLP dendrogram suggested that the clade formed by Citrus and Fortunella is sister to that formed by Microcitrus, Eremocitrus, and Clymenia. We also discussed the phylogenetic relationships within the Citrus genus.
Rutaceae Aurantioideae The true citrus fruit trees group Molecular phylogenetics AFLP cpDNA sequence
Zhenhua Lu Rangjin Xie Zhiqin Zhou
College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, Chin College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, Chin
国际会议
11th International Citrus Congress(第11届国际柑橘大会)
武汉
英文
315-325
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）