caa a22 4500 475806581 CHVBK 20180406123748.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF00986339 doi (NATIONALLICENCE)springer-10.1007/BF00986339 A biosystematic study of the Oryza meyeriana complex (Poaceae) [Elektronische Daten] [Y. Gong, T. Borromeo, B. Lu] To determine the taxonomic status and to clarify the biosystematic relationships of wild rice species, i.e.,Oryza granulata andO. meyeriana in theO. meyeriana complex (Poaceae), a series of intraspecific and interspecific hybridization experiments, genomic analyses through meiotic pairing, and morphological studies were conducted. Hybridization results demonstrate comparatively high crossability with about 34-39% of seed set, and very limited reproductive isolation betweenO. granulata andO. meyeriana. Chromosome pairing in the parental species and their F1 hybrids indicate very high genomic affinity between the two taxa. Morphological analyses of the parental accessions and their intra- and interspecific hybrids show a large variation among the samples included, but no appreciable grouping was observed. The traditionally used character, i.e., spikelet length, does not contribute significantly to the grouping of the samples included. Based on the facts that the two taxa have negligible reproductive barriers and share almost identical genomes, the authors believe thatO. granulata andO. meyeriana do not warrant separate taxonomic status, and recommend that they be combined asOryza granulata. Springer-Verlag, 2000 Poaceae nationallicence Oryza. Wild rice nationallicence morphological variation nationallicence hybridization nationallicence meiotic pairing nationallicence biosystematics nationallicence Gong Y. University of Philippines Los Baños, Laguna, Philippines aut Borromeo T. University of Philippines Los Baños, Laguna, Philippines aut Lu B. Institute of Biodiversity Science, School of Life Sciences, Fudan University, 200433, Shanghai, People's Republic of China aut Plant Systematics and Evolution Springer-Verlag 224/3-4(2000-09-01), 139-151 0378-2697 224:3-4<139 2000 224 606 https://doi.org/10.1007/BF00986339 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00986339 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gong Y. University of Philippines Los Baños, Laguna, Philippines aut NATIONALLICENCE 700 1- Borromeo T. University of Philippines Los Baños, Laguna, Philippines aut NATIONALLICENCE 700 1- Lu B. Institute of Biodiversity Science, School of Life Sciences, Fudan University, 200433, Shanghai, People's Republic of China aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 224/3-4(2000-09-01), 139-151 0378-2697 224:3-4<139 2000 224 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer