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Species

Genome

Chromosome Number    ( 2n= )

Regional distribution

Sativa complex

 

 

 

Oryza sativa

AA

24

Worldwide

Oryza glaberrima

AgAg

24

West Africa

Oryza nivara

AA

24

Tropical and subtropical Asia

Oryza rufipogon

AA

24

Tropical and subtropical Asia; tropical Australia

Oryza breviligulata

AgAg

24

Africa

Oryza longistaminata

AlAl

24

Africa

Oryza meridionalis

AmAm

24

TropicalAustralia

Oryza glumaepatula

AgpAgp

24

South and Central America

 

 

 

 

Officinalis complex

 

 

 

Oryza punctata

BB, BBCC

24, 48

Africa

Oryza minuta

BBCC

48

Philippines and Papua New Guinea

Oryza officinalis

CC

24

Tropical and subtropical Asia; tropical Australia

Oryza rhizomatis

CC

24

Sri Lanka

Oryza eichingeri

CC

24

South Asia and East Africa

Oryza latifolia

CCDD

48

South Asia and East Africa

Oryza alta

CCDD

48

South Asia and East Africa

Oryza grandiglumis

CCDD

48

South and Central America

Oryza australiensis

EE

24

TropicalAustralia

 

 

 

 

Meyeriana complex

 

 

 

Oryza granulata

GG

24

South and Southeast Asia

Oryza meyeriana

GG

24

Southeast Asia

 

 

 

 

Ridleyi complex

 

 

 

Oryza longiglumis

HHJJ

48

Irian Jaya, Indonesia, Papua New Guinea

Oryza ridleyi

HHJJ

48

South Asia

 

 

 

 

Uncertain classification

 

 

 

Oryza brachyantha

FF

24

Africa

Oryza schlechteri

HHKK

48

Papua New Guinea

TABLE 49. Species of rice (Oryza sp.), their karyological composition and distribution

© by R. Schlegel 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019