Different Maternal Genome Donor to Kengyilia Species Inferred from Chloroplast Trnl-F Sequences
BIOLOGIA PLANTARUM 53 (4): 759-763, 2009 BRIEF COMMUNICATION Different maternal genome donor to Kengyilia species inferred from chloroplast trnL-F sequences C. ZHANG1,2, X. FAN1, H.Q. YU1, L. ZHANG3, X.L. WANG3 and Y.H. ZHOU1,2* Triticeae Research Institute1, Key Laboratory of Crop Genetic Resources and Improvement2, and College of Biology and Science3, Sichuan Agricultural University, Yaan 625014, Sichuan, P.R. China Abstract To reveal the maternal donor of species in genus Kengyilia, the chloroplast trnL-F sequences of 14 Kengyilia species and several related diploid species were analyzed by using Maximum Parsimony (MP) and Bayesian Inference (BI) methods. The species in Kengyilia were clustered in different clades, which indicated that Agropyron (P) is the likely maternal genome donor to Kengyilia melanthera, K. mutica and K. thoroldiana, while the maternal donor to Kengyilia batalinii, K. nana, K. kokonorica, K. kaschgarica, K. hirsuta, K. alatavica, K. gobicola, K. zhaosuensis, K. rigidula, K. longiglumis and K. grandiglumis was St or Y Roegneria genome. Additional key words: Agropyron, cluster analysis, phylogeny, Roegneria, StYP genomes, Triticeae. ⎯⎯⎯⎯ Kengyilia Yen et J.L. Yang is a perennial genus in Triticeae reported that Pseudoroegneria is the maternal genome (Poaceae), with about thirty species worldwide. Morpho- donor to Elymus species based on trnL-F sequences. logically, species in Kengyilia are intermediate between The chloroplast genome is maternally inherited in species of Roegneria C. Koch and Agropyron Gaertn. grasses and provides a mechanism to determine the (Yen and Yang 1990, Cai and Zhi 1999) Cytologically, direction of hybridization in polyploid evolution (Jones these species are allohexaploid grasses with StYP et al.
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