![[Home Page]](/images/icons/gramene_logo180new.jpg "[Home Page]"){kind=icon}
We present a report from Rice Genetic Stock Center at IRRI: Wild relatives of rice conserved at the International Rice Germplasm Center (by D. A. Vaughan et al.). In Rice Genetic Stock Center at Kyushu University, we did not receive any seed sample and information during last one year.
We will compile and present the list of marker gene stocks and an additional genetic stocks in future issues of RGN. We request kind cooperation of all RGC members concerned.
We also request all RGC members to contribute a share of seeds of new genetic stocks, particularly of those reported in RGN, to Rice Genetic Stock Center, either the convener's laboratory at Kyushu University or at IRRI. If received, we present a list of receipts in this report.
Wild relatives of rice conserved at the International Rice Germplasm Center, IRRI
Duncan A. VAUGHAN, Ma. Socorro ALMAZAN, Myrna OLIVA and Ma. Elizabeth NAREDO
International Rice Germplasm Center, IRRI, P. O. Box 933, Manila, Philippines
The current inventory of the wild relatives of rice in the International Rice Germplasm Center (IRGC) is presented. This inventory accounts for the total number of accessions conserved in IRGC, excluding 42 accessions known to be duplicates. Incoming samples currently under quarantine inspection and for which seed stocks are, as yet, insufficient for assigning an accession number are also presented (Tables 1 and 2).
The nomenclature follows that used by Chang (1988) and Vaughan (1989). Hybrid populations were identified by the collector, donor or as a result of characteristics observed when the material was grown and recharacterised.
All known Oryza species are now present in the collection conserved in IRGC. There are a number of countries where wild relatives of rice are known to occur, or have occurred, from which no population is conserved in IRGC. These countries include Bolivia, Ecuador, Peru and Trinidad and Tobago in Latin America, Angola, the Central African Republic, Namibia and Mozambique in Africa and Pakistan in Asia. The overall representation of populations of wild rice in different geographic regions is as follows:
Latin America -3.7% of samples from 14 countries
Africa -16.6% of samples from 24 countries
Asia -72.8% of samples from 15 countries
Australia and Papua New Guinea-6.9% of samples
Of the 11 genera related to Oryza in the subfamily Oryzoideae, only Malte-
brunia and Zizania are not represented in the IRGC collection. Zizania is
deliberately excluded from the Philippines for quarantine reasons. The
species represented from related genera and their origin is presented
(Table 3).
Reference
Chang, T. T., 1988. Taxonomic key for identifying the 22 species in the genus Oryza. Int. Rice Res. Newslett. 13(5): 4-5.
Vaughan, D. A., 1989. The genus Oryza L.: current status of taxonomy. IRRI Res. Paper Ser. no. 138. IRRI, Los Banos, Laguna, Philippines. 21pp.
Table 1. Oryza species and the number of accessions conserved in the
International Rice Germplasm Center, IRRI (August, 1991).
====================================================================
Species Number of accessions
(incoming samples)
====================================================================
O. alta 10
O. australiensis 25
O. barthii 147 (13)
O. brachyantha 11
O. eichingeri 18
O. giumaepatula 32
O. grandiglumis 8
O. granulata 7(10)
O. indandamanica I
O. latifolia 33
O. longiglumis 5 (1)
O. longistaminata 108 (64)
O. malampuzhaensis 5
O. meridionalis 39
O. meyeriana 7 (4)
O. minuta 47 (18)
O. nivara 318 (43)
O. officinalis 155 (72)
O. punctata 41 (6)
O. rhizomatis 18
O. ridleyi 11 (7)
O. rufipogon 494 (218)
O. schlechteri (1)
O. spontanea and hybrid populations 309 (31)
Oryza species 38
===================================================================
Total 1,887 (488)
===================================================================
Table 2. Accessions of Oryza species conserved in the IRGC, IRRI arranged by
country of origin and species (August. 1991).
===================================================================
Origin Species Number of accessions
(incoming samples)
===================================================================
Africa O. barthi 3
O. longistaminata 5
Argentina O. latifolia 1
Australia O. australietisis 23
O. nieridionalis 39
O. rufipogon 1
Bangladesh O. nivara 21
O. officinalis 1
O. rufipogon 24(4)
O. spontanea and hybrid population 28(2)
Oryza species 1
Benin O. longistamitiata 2
Botswana O. barthii 1
O. longistaminata 1
Brazil O. alta 2
O. gluniaepatlila 20
O. grandigluinis 8
Brunei O. officinalis 13
Burkina Faso O. barthii 3
Cnmbodia O. nivara 41(22)
O. rufipogon 5(17)
O. spontanea and hybrid populations 4(2)
Cameroon O. barthii 21
O. brachyantha 3
O. longistaminata 13(5)
O. plinctata 8
Chad O. barthii 22(11)
O. brachyantha 1
O. longistaminata 5(2)
O. punctata 3(2)
China O. granulata 1
O. nivara 2
O. officinalis 10(2)
O. rufipogon 9
O. spontanea and hybrid populations 33
China-Taiwan O. nivara 3
O. rufipogon 36
Hybrid populations 41
Colombia O. glumaepatula 1
O. latifolia 2
Costa Rica O. latifolia 7
Cuba O. glumaepatula 3
O. latifolia 1
Ethiopia O. longistamitiata 10
French Guiana O. glumaepatula 1
Gambia O. barthii 6
Ghana O. longistaminata 2
O. punctata 1
Guatemala O. latifolia 8
Guinea O. barthii 6
O. brachyantha 1
Guinea-Bissau O. longistaminata 1
Guyana O. alta 1
O. glumaepatula 1
India O. granulata 2(4)
O. indandamanica 1
O. malampuzhaensis 4
O. nivara 104
O. officinalis 9
O. rufipogon 97(19)
O. spontanea and hybrid populations 82(2)
Oryza species 2
Indonesia O. longiglumis 5
O. meveriana (1)
O. officinalis 49(19)
O. ridleyi 2
O. rufipogon 10(14)
O. spontanea 2
Oryza species 1
Ivory Coast O. barthii 1
O. longistaminata 8
Kenya O. longistaminata 4
O. punctata 4
Laos O. granulata (2)
O. nivara 5
O. rufipogon 15(5)
O. spontanea 1
Madagascar O. longistaminata 2
O. punctata (1)
Hybrid populations 2
Malaysia O. meyeriana 6(1)
O. officinalis 26(3)
O. ridleyi 4(2)
O. rufipogon 5(4)
Hybrid populations 5
Mali O. barthii 52(1)
O. brachyantha 1
O. longistaminata 12(57)
Oryza species 1(2)
Hybrid populations 2
Mauritania O. barthii (1)
Mexico O. latifolia 3
Myanmar O. granulata 1
O. nivara 3(18)
O. officinalis 3(26)
O. rufipogon 6(36)
O. spontanea and hybrid populations 5(17)
Nepal O. granulata 1(2)
O. nivara 9
O. rufipogon 3
O. spontanea 1
Nicaragua O. latifolia 1
Niger O. barthii 3
Hybrid populotions 2
Oryza species 1
Nigeria O. barthii 4
O. longistaminata 14
O. punctata 5(3)
Oryza species 1
Panama O. latifolia 1
Papua New Guinea O. longiglumis (1)
O. minuta (4)
O. officinalis (6)
O. ridleyi (3)
O. rufipogon (54)
O. schlechter! (1)
Paraguay O. latifolia 1
Philippines O. meyeriana (2)
O. minuta 43(14)
O. officinalis 29(9)
O. rufipogon 3
Senegal O. barthii 8
O. longistaminata 7
Hybrid populations 2
Sierra Leone O. barthii 3
O. brachyantha 5
O. longistaminata 3
Sri-Lanka O. eichingeri 8
O. granulata 1
O. nivara 29
O. officinalis 2
O. rhizomatis 18
O. rufipogon 18
Hybrid populotions 17
Sudan O. barthii 7
O. longistaminata 1
Surinam O. alta 4
O. glumaepatula 2
O. latifolia 1
Tanzania O. barthii 4
O. longistaminata 11
O. punctata 11
Thailand O. granulata 1
O. nivara 100(3)
O. officinaiis 7(5)
O. ridleyi 5(2)
O. rufipogon 250(8)
O. spontanea ond hybrid populations 73(4)
Oryza species 30
Uganda O. eichingeri 10
Venezuela O. glumaepatula 3
Vietnam O. granulata (2)
O. officinalis 2(2)
O. rufipogon 7(57)
O. spontanea 1(3)
Zaire O. longistaminata 1
O. punctata 1
Zambia O. barthii 1
O. longistaminata 5
Unknown O. alta 3
O. australiensis 2
O. barthii 2
O. glumaepatula 1
O. granulata 1
O. latifolia 8
O. longistaminata 1
O. malampuzhaensis 1
O. minuta 4
O. nivara 1
O. officinalis 4
O. punctata 7
O. rufipogon 6
O. spontanea ond hybrid populations 4
Oryza species 1
======================================================================
1,887 (488)
======================================================================
Table 3. Species in genera related to Oryza conserved in IRGC and their
origin (August, 1991)
======================================================================
Species Origin Total number of accession
(incoming samples)
======================================================================
Chikusichloa aquatica Japan (1)
Hygroryza aristata Sri Lanka 4
Leersia hexandra Philippines 1(1)
Leersia perrieri Madagascar 1
Leersia tisseranti Cameroon 1
Guinea 1
Luziola leiocarpa Argentina (1)
Porteresia coarctata Bangladesh 1
Potamophila parviflora Australia 1
Prosphytochloa prehensilis South Africa (1)
Rhynchoryza subulata Argentina 1
Zizaniopsis villaensis Argentina (1)
======================================================================
Total 10(6)
======================================================================
