Resistance of Lolium multiflorum/Festuca arundinacea hybrids to some diseases of their parent species

Euphytica ◽  
1974 ◽  
Vol 23 (2) ◽  
pp. 315-320 ◽  
Author(s):  
P. W. Wilkins ◽  
A. J. H. Carr ◽  
E. J. Lewis
Keyword(s):  
Festuca Arundinacea ◽  
Lolium Multiflorum ◽  
Parent Species

scholarly journals Introgression Mapping of Genes for Winter Hardiness and Frost Tolerance Transferred from Festuca arundinacea into Lolium multiflorum

2007 ◽  
Vol 98 (4) ◽  
pp. 311-316 ◽  
Author(s):  
A Kosmala ◽  
Z Zwierzykowski ◽  
E Zwierzykowska ◽  
M Luczak ◽  
M Rapacz ◽  
...  
Keyword(s):  
Festuca Arundinacea ◽  
Lolium Multiflorum ◽  
Frost Tolerance ◽  
Winter Hardiness

Genomic characteristics of a diploid F4 festulolium hybrid (Lolium multiflorum × Festuca arundinacea)

Genome ◽  
2012 ◽  
Vol 55 (8) ◽  
pp. 599-603 ◽  
Author(s):  
Yukio Akiyama ◽  
Kenji Kimura ◽  
Hitomi Yamada-Akiyama ◽  
Akito Kubota ◽  
Yoshinori Takahara ◽  
...  
Keyword(s):  
Festuca Arundinacea ◽  
Agronomic Traits ◽  
Genetic Relationships ◽  
Lolium Multiflorum ◽  
Summer Temperature ◽  
Chromosome Engineering ◽  
Chromosome Architecture ◽  
Potential Applications ◽  
High Ploidy ◽  
Heat Stress Tolerance

The grass festulolium, a hybrid between the genera Festuca and Lolium , has a variety of beneficial agronomic attributes derived from both parents. Compared with high-ploidy festulolium, diploid festulolium is well suited to stabilizing ploidy and for studying agronomic traits and genetic relationships. We sought to produce a diploid festulolium hybrid that was resistant to summer depression, by hybridizing diploid Lolium multiflorum Lam. and hexaploid Festuca arundinacea Schreb., which has a high tolerance to summer depression. We obtained seven diploid F4 plants that were capable of surviving the extremely hot summer in Morioka, Japan, in 2010, which was 2.7 °C higher than the average summer temperature. The observed resistance to summer depression in these plants was likely due to heat stress tolerance. The genomic constitutions of these seven hybrids were analyzed by GISH, and the chromosomal characteristics of a single diploid F4 was analyzed by FISH using rDNA probes. The results showed that although no Festuca-specific genome remained in any of the seven diploid F4 plants, extensive chromosomal rearrangement was observed in one of them. Our findings suggested that hybridizing diploid L. multiflorum and hexaploid F. arundinacea may be useful for modifying chromosome architecture in the Lolium genome with potential applications in chromosome engineering.

scholarly journals Branching of tillers in some grasses

2013 ◽  
Vol 34 (1) ◽  
pp. 53-67
Author(s):  
Leontyna Olszewska ◽  
Maria Wielicka
Keyword(s):  
Cross Section ◽  
Festuca Arundinacea ◽  
Lolium Multiflorum ◽  
Phleum Pratense ◽  
Grass Species ◽  
Holcus Lanatus ◽  
Starting Point ◽  
Formation Conditions ◽  
Arrhenatherum Elatius

In investigations on the grass regeneration biology a special attention was paid to the formation of aerial tillers and branching pseudostolons in <i>Dactylis glomerata</i> L., <i>Festuca arundinacea</i> Schreb., <i>Festuca pratensis</i> Huds., <i>Festuca rubra</i> L., <i>Phleum pratense</i> L., <i>Lolium multiflorum</i> Lam., <i>Lolium perenne</i> L., <i>Phalaris arundinacea</i> L., <i>Arrhenatherum elatius</i> (L.) P. B., <i>Holcus lanatus</i> L., <i>Agropyron repens</i> (L.) P. B., <i>Avenastrum pubescens</i> (Huds) Opiz and <i>Agrostis alba</i> L. Aerial tillers, vegetative short ones and with partly elongated internodes as well as generative tillers formed in tufted and rhizomatous grasses. Parental raised tillers, on which aerial tillers developed, had the anatomical structure specific for grass stems. In tufted grasses, moreover, parental branching pseudostolons developed; in their cross section the arrangement of tissues specific for stolons was observed. They constituted the starting point for agglomerations of new plants rooting in soil, contrary to raised tillers. In some grass species, beside pendant roots, shorter roots grew at the base of aerial tillers; they surrounded with a ring the parent shoot in the node, thus reinforcing the connection of aerial tillers with the stem. An attention was paid to the favourable role of branching pseudostolons in the sward thickness formation. Conditions of the arrangement of tissues in the stem cross section, owing to which the rhizomatous form is developed, are discussed. The fertilization with compost or the covering with sand results in the formation of tillers resembling pseudorhizomes.

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