Genetic Diversity and Core Collection for Potato (Solanum tuberosum L.) Cultivars from Cameroon as Revealed by SSR Markers

被引：14

作者：

Anoumaa, Mariette ^{[1
,2
]}

Yao, Nasser Kouadio ^{[2
]}

Kouam, Eric Bertrand ^{[3
]}

Kanmegne, Gabriel ^{[1
]}

Machuka, Eunice ^{[2
]}

Osama, Sarah Karen ^{[2
]}

Nzuki, Inosters ^{[4
]}

Kamga, Yanick Borel ^{[1
]}

Fonkou, Theophile ^{[1
]}

Omokolo, Denis Ndoumou ^{[5
]}

机构：

[1] Univ Dschang, Dept Plant Biol, Fac Sci, POB 67, Dschang, Cameroon

[2] ILRI Hub, Biosci Eastern & Cent Africa BecA, POB 30709, Nairobi 00100, Kenya

[3] Univ Dschang, Fac Agron & Agr Sci, Dept Agr, POB 222, Dschang, Cameroon

[4] ILRI, IITA, POB 30709, Nairobi 00100, Kenya

[5] Univ Yaounde I, Dept Biol Sci, Higher Teachers Training Coll, POB 47, Yaounde, Cameroon

来源：

AMERICAN JOURNAL OF POTATO RESEARCH | 2017年 / 94卷 / 04期

基金：

比尔及梅琳达.盖茨基金会;

关键词：

Solanum tuberosum L; SSR markers; Genetic diversity; Core collection; Cameroon; POPULATION-STRUCTURE; F-STATISTICS; SYSTEMS; MICROSATELLITES; SOFTWARE; LOCI;

D O I：

10.1007/s12230-017-9584-2

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Twelve pairs of SSR markers were used to evaluate the genetic diversity of 138 accessions of potato cultivars from the Western Highlands region of Cameroon. The average Polymorphism information content (PIC) value (0.74) and number of alleles (7.08) indicated a high genetic diversity of the potato cultivars tested. Analysis of molecular variance revealed that most of the genetic variations are found within geographic region (>= 91%), resulting in high gene flow (Nm > 4 individuals). Local varieties had significantly more alleles than exotic varieties. Genetic diversity estimates for accessions from low elevations were significantly lower than those from medium and high elevations. Cluster analysis showed three clusters; the model-based approach inferred two gene pools. Genotypes revealed a high level of admixture between gene pools within locations and elevations. A core collection identified in this study composed of 27 individuals representing 19.57% of the whole collection and captured 99.15% of the total alleles found.

引用

页码：449 / 463

页数：15

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