机构详细信息

International Institute of Tropical Agriculture

The Genetic Resources Centre of IITA in Ibadan, Nigeria, maintains crops important for sub-Saharan Africa: banana, cassava and yam in the field and in vitro; African yam bean, Bambara groundnut, cowpea, maize, sorghum and soybean, and some other legumes, as seed. Details ofabout 31,000 accessions are available through Genesys.

Cowpea accounts for 16,000 accessions, with about 2000 each of Bambara groundnut and soybean and 1500 of maize. The collection of clonal crops includes almost 4000 accessions of cassava, just over 4000 of yam and 283 of banana. More than half of all the accessions are traditional cultivars or landraces and 1.5% are known to be wild relatives.

Seed crops are kept in conventional genebank storage with medium-term and long-term facilities. Clonal crops are kept in field genebanks and in vitro tissue cultures for short and medium term storage, with an increasing number being brought into cryopreservation for long-term storage.

About 60% of the accessions are safety duplicated at the Svalbard Global Seed Vault. Smaller safety duplicates are held at the Saskatoon Research Centre in Canada and at CIMMYT in Mexico.

机构代码
NGA039
类型
CGIAR
国家/地区
Genesys 中的种质
位置
纬度
7.23
经度
3.61
最具代表性的作物
cowpea
bambara
soybeans
maize
其他
1,749
未指定
1,388
最具代表性的作物名称
cowpea
17,531
Yam
3,322
yam
2,528
Bambara Groundnut
2,085
Soybean
1,909
其他
4,254
未指定
1,115
最具代表性的属
Vigna
Dioscorea
Glycine
Manihot
其他
1,189
最具代表性的种
Vigna unguiculata
Dioscorea rotundata
Glycine max
Vigna subterranea
Zea mays
其他
6,376
护照数据的上次更新时间
30 November 2019
24 September 2019
PDCI:护照数据完整性指数
Genesys 会使用 PDCI 作为已发布护照数据的完整性指标。PDCI 使用基因库种质文档中存在或缺失的数据点,以便考虑其他数据点的存在或价值(van Hintum 等人,2011 年)例如,野生种质应具有定义明确的采集站点,但没有品种名称。PDCI 的范围从 0 到 10,其中最低分数 0 表示相当不完整的护照记录,而最高分数 10 则表示非常完整的护照记录。种质的任何类型,野生、地方品种、育种材料或现代变体,都可以达到 PDCI 的最高分。
护照记录的编号
7000
5250
3500
1750
0 1 2 3 4 5 6 7 8 9 10
护照数据完整性指数 (PDCI)
32,744 份种质的平均 PDCI 得分为 5.26,最低得分为 2.80,最高得分为 7.80。