Evidence map›Paper›PMID 21637515›Full record

ArticleGenetics and molecular biology2009

Genetic diversity and phylogeny in Hystrix (Poaceae, Triticeae) and related genera inferred from Giemsa C-banded karyotypes.

Hai-Qin Zhang, Rui-Wu Yang, Li Zhang, Chun-Bang Ding, Jian Zeng, Yong-Hong Zhou

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Article in Genetics and molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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6 authors.

Hai-Qin ZhangTriticeae Research Institute, Sichuan Agricultural University, Sichuan China.
Rui-Wu Yang
Li Zhang
Chun-Bang Ding
Jian Zeng
Yong-Hong Zhou

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The phylogenetic relationships of 15 taxa from Hystrix and the related genera Leymus (NsXm), Elymus (StH), Pseudoroegneria (St), Hordeum (H), Psathyrostachys (Ns), and Thinopyrum (E) were examined by using the Giemsa C-banded karyotype. The Hy. patula C-banding pattern was similar to those of Elymus species, whereas C-banding patterns of the other Hystrix species were similar to those of Leymus species. The results suggest high genetic diversity within Hystrix, and support treating Hy. patula as E. hystrix L., and transferring Hy. coreana, Hy. duthiei ssp. duthiei and Hy. duthiei ssp. longearistata to the genus Leymus. On comparing C-banding patterns of Elymus species with their diploid ancestors (Pseudoroegneria and Hordeum), there are indications that certain chromosomal re-arrangements had previously occurred in the St and H genomes. Furthermore, a comparison of the C-banding patterns of the Hystrix and Leymus species with the potential diploid progenitors (Psathyrostachys and Thinopyrum) suggests that Hy. coreana and some Leymus species are closely related to the Ns genome of Psathyrostachys, whereas Hy. duthiei ssp. duthiei, Hy. duthiei ssp. longearistata and some of the Leymus species have a close relationship with the E genome. The results suggest a multiple origin of the polyploid genera Hystrix and Leymus.

Indexed as

C-bandingElymusgenomeHystrixLeymusTriticeae

Identifiers

PMID21637515
PMCPMC3036064

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