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- Williams, W.M.; Ansari, H.A.; Ellison, N.W.; Hussain, S.W.
- Annals of botany 2001 v.87 no.5 pp. 683-691
- Trifolium nigrescens, etc ; plant morphology; wide hybridization; nucleotide sequences; ribosomal DNA; interspecific hybridization; Trifolium repens; cytogenetic analysis; seed set; pollination; hybrids; Show all 11 Subjects
- ... Germplasm accessions of Trifolium nigrescens Viv. were found to belong to three distinct taxa which differed in morphology, hybrid seed-set in crosses among themselves and with white clover (T. repens L.), chromosomal distribution of rDNA genes, and rDNA internally transcribed spacer (ITS) region sequences. These taxonomic groups correspond with T. nigrescens ssp. nigrescens, T. nigrescens ssp. pe ...