Dactylis glomerata

Morphological and genetic characteristics of hybrid combinations of Dactylis glomerata

Y. F. Zhao, Zhang, X. Q., Ma, X., Xie, W. G., and Huang, L. K., “Morphological and genetic characteristics of hybrid combinations of Dactylis glomerata”, vol. 13, pp. 2491-2503, 2014.

Six F1 populations derived from crosses among 4 orchardgrass (Dactylis glomerata L.) cultivars were studied by morphological and simple sequence repeat molecular markers to test for hybrid vigor and a correlation between genetic distance and heterosis. Heterosis was observed for days to length of culm, leaf traits, tiller numbers, etc. Significant differences between obverse and inverse crosses were found for eleven traits. A cytoplasmic effect existed for the agronomic traits considered in this study.

Analysis of diversity and relationships among orchardgrass (Dactylis glomerata L.) accessions using start codon-targeted markers

L. F. Jiang, Qi, X., Zhang, X. Q., Huang, L. K., Ma, X., and Xie, W. G., “Analysis of diversity and relationships among orchardgrass (Dactylis glomerata L.) accessions using start codon-targeted markers”, vol. 13, pp. 4406-4418, 2014.

Orchardgrass, or cocksfoot, is an important perennial forage grass worldwide. The comprehensive understanding of orchardgrass accessions will benefit germplasm collection and breeding progress, and it will enhance efforts to improve forage yield and quality. Therefore, 24 novel, simple, polymorphic, and reliable start codon-targeted (SCoT) markers were used to analyze the diversity and genetic relationships among 95 orchardgrass accessions. In total, 273 polymorphic bands were detected with an average of 11.4 bands per primer.

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