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Biologia Plantarum

, Volume 53, Issue 1, pp 45–52 | Cite as

Genetic relationships among Hystrix patula, H. duthiei and H. longearistata according to meiotic studies and genome-specific RAPD assay

  • H.-Q. Zhang
  • Y.-H. Zhou
Original Papers

Abstract

Hybrids including Hystrix patula, H. duthiei and H. longearistata were obtained and genetic relationships among them were studied. Meiotic pairing in hybrids of H. duthiei × Psathyrostachys juncea (Ns), H. longearistata × Psa. juncea (Ns), Leymus multicaulis (NsXm) × H. duthiei, L. multicaulis (NsXm) × H. longearistata, Elymus sibiricus (StH) × H. patula, Roegneria ciliaris (StY) × H. patula, R. ciliaris (StY) × H. duthiei and R. ciliaris (StY) × H. longearistata averaged 5.76, 5.44, 11.94, 10.88, 10.08, 3.57, 0.46 and 0.90 bivalents per cell, respectively. The results indicated that H. duthiei and H. longearistata had the NsXm genomes of Leymus, while H. patula contained the StH genomes and had a low genome affinity with the StY genomes of Roegneria. Results of genome-specific RAPD assay were comparable with the chromosome pairing data. According to the genomic system of classification in Triticeae, H. patula should be considered as Elymus hystrix L., while H. duthiei and H. longearistata as Leymus duthiei and Leymus duthiei ssp. longearistata, respectively.

Additional key words

chromosome pairing Leymus

Abbreviations

CTAB

cetyltrimethylammonium bromide

PMC

pollen mother cells

RAPD

random amplified polymorphic DNA

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Triticeae Research InstituteSichuan Agricultural University, DujiangyanSichuanP.R. China
  2. 2.Key Laboratory of Crop Genetic Resources and Improvement, Ministry of EducationSichuan Agricultural University, YaanSichuanP.R. China

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