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Genetic diversity of grasspea and its relative species revealed by SSR markers.

Wang F, Yang T, Burlyaeva M, Li L, Jiang J, Fang L, Redden R, Zong X - PLoS ONE (2015)

Bottom Line: The UPGMA dendrogram and PCA cluster also demonstrated that Asian group was convincingly separated from the other group.The AMOVA result showed that the cultivated species was quite distinct from its relative species, however a low level of differentiation was revealed among their geographic origins.In all, these results provided a molecular basis for understanding genetic diversity of L. sativus and its relatives.

View Article: PubMed Central - PubMed

Affiliation: The National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.

ABSTRACT
The study of genetic diversity between Lathyrus sativus L. and its relative species may yield fundamental insights into evolutionary history and provide options to meet the challenge of climate changes. 30 SSR loci were employed to assess the genetic diversity and population structure of 283 individuals from wild and domesticated populations from Africa, Europe, Asia and ICARDA. The allele number per loci ranged from 3 to 14. The average gene diversity index and average polymorphism information content (PIC) was 0.5340 and 0.4817, respectively. A model based population structure analysis divided the germplasm resources into three subgroups: the relative species, the grasspea from Asia, and the grasspea from Europe and Africa. The UPGMA dendrogram and PCA cluster also demonstrated that Asian group was convincingly separated from the other group. The AMOVA result showed that the cultivated species was quite distinct from its relative species, however a low level of differentiation was revealed among their geographic origins. In all, these results provided a molecular basis for understanding genetic diversity of L. sativus and its relatives.

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UPGMA dendrogram of Nei’s (1978) Genetic Distance among all Lathyrus accessions used in this study.
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pone.0118542.g004: UPGMA dendrogram of Nei’s (1978) Genetic Distance among all Lathyrus accessions used in this study.

Mentions: The Lathyrus sativus relatives as a group were marginally more similar to the Asian than to the African and European sources of L. sativus, whereas the African and European sources of L. sativus were more closely related than either to the Asian source (Table 6, Fig. 4). All Lathyrus accessions were clustered according to Nei’s genetic distance [20] (Fig. 4). The largest genetic distance (0.6360) was between Lathyrus sativus relatives and European grasspea, and the smallest genetic distance (0.0038) was between African and European grasspea. Based on the origin of L. sativus accessions, the genetic distance between Africa and Asia (0.0141) was larger than it between Europe and Asia (0.0118). These result matched with structure analysis above.


Genetic diversity of grasspea and its relative species revealed by SSR markers.

Wang F, Yang T, Burlyaeva M, Li L, Jiang J, Fang L, Redden R, Zong X - PLoS ONE (2015)

UPGMA dendrogram of Nei’s (1978) Genetic Distance among all Lathyrus accessions used in this study.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4368647&req=5

pone.0118542.g004: UPGMA dendrogram of Nei’s (1978) Genetic Distance among all Lathyrus accessions used in this study.
Mentions: The Lathyrus sativus relatives as a group were marginally more similar to the Asian than to the African and European sources of L. sativus, whereas the African and European sources of L. sativus were more closely related than either to the Asian source (Table 6, Fig. 4). All Lathyrus accessions were clustered according to Nei’s genetic distance [20] (Fig. 4). The largest genetic distance (0.6360) was between Lathyrus sativus relatives and European grasspea, and the smallest genetic distance (0.0038) was between African and European grasspea. Based on the origin of L. sativus accessions, the genetic distance between Africa and Asia (0.0141) was larger than it between Europe and Asia (0.0118). These result matched with structure analysis above.

Bottom Line: The UPGMA dendrogram and PCA cluster also demonstrated that Asian group was convincingly separated from the other group.The AMOVA result showed that the cultivated species was quite distinct from its relative species, however a low level of differentiation was revealed among their geographic origins.In all, these results provided a molecular basis for understanding genetic diversity of L. sativus and its relatives.

View Article: PubMed Central - PubMed

Affiliation: The National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.

ABSTRACT
The study of genetic diversity between Lathyrus sativus L. and its relative species may yield fundamental insights into evolutionary history and provide options to meet the challenge of climate changes. 30 SSR loci were employed to assess the genetic diversity and population structure of 283 individuals from wild and domesticated populations from Africa, Europe, Asia and ICARDA. The allele number per loci ranged from 3 to 14. The average gene diversity index and average polymorphism information content (PIC) was 0.5340 and 0.4817, respectively. A model based population structure analysis divided the germplasm resources into three subgroups: the relative species, the grasspea from Asia, and the grasspea from Europe and Africa. The UPGMA dendrogram and PCA cluster also demonstrated that Asian group was convincingly separated from the other group. The AMOVA result showed that the cultivated species was quite distinct from its relative species, however a low level of differentiation was revealed among their geographic origins. In all, these results provided a molecular basis for understanding genetic diversity of L. sativus and its relatives.

Show MeSH