Czech Journal of Genetics and Plant Breeding, 2009 (vol. 45), issue 4

Index of volume 45 (2009), Authors index, List of reviewersIndex

editors

Czech J. Genet. Plant Breed., 2009, 45(4):I-IV | DOI: 10.17221/446-CJGPB

Disease resistance in pea (Pisum sativum L.) types for autumn sowings in Mediterranean environments - a reviewReview

Diego RUBIALES, Mónica FERNÁNDEZ-APARICIO, Ana MORAL, Eleonora BARILLI, Josefina Carmen SILLERO, Sara FONDEVILLA

Czech J. Genet. Plant Breed., 2009, 45(4):135-142 | DOI: 10.17221/75/2009-CJGPB

Pea is an important grain legume mainly grown as spring crop in temperate regions. However, in areas with mild winters and dry springs, like Mediterranean type environments, spring pea types are autumn sown. Unfortunately, little efforts have been made so far in pea breeding for constraints typical of these environments, such as crenate broomrape (Orobanche crenata), rust (Uromyces pisi), powdery mildew (Erysiphe pisi) and ascochyta blight (Mycosphaerella pinodes). In this paper we revise the present state of the art in pea breeding against these diseases and we will critically discuss present progress and future...

Cytogenetical investigations in colchicine-induced tetraploids of Cyamopsis tetragonoloba L.Original Paper

Sangeeta BEWAL, Jigyasa PUROHIT, Arun KUMAR, Rajkumari KHEDASANA, Satyawada Rama RAO

Czech J. Genet. Plant Breed., 2009, 45(4):143-154 | DOI: 10.17221/41/2009-CJGPB

Successful induction of autotetraploidy has been achieved in five accessions of Cyamopsis tetragonoloba L. The diploid seedlings of these accessions were treated with different concentrations of aqueous colchicine using the cotton-swab method for 10-18 hours within 2-3 days. The highest percentage of success was recorded when the seedlings were treated with 0.2% colchicine for 10 h within two days. The synthesized plants showed remarkable enhancement in several morphological and floral characters making them more robust and better plants from the food and feed aspect. Cytologically, quadrivalent frequency ranging from 3.18 to 5.45 and univalent...

Genetic diversity among flue-cured tobacco cultivars on the basis of AFLP markersOriginal Paper

Xiao Zhen Liu, Chuan Shen He, Yu Ming Yang, Han Yao Zhang

Czech J. Genet. Plant Breed., 2009, 45(4):155-159 | DOI: 10.17221/15/2009-CJGPB

AFLP analyses were used to assess the genetic similarity among selected accessions at the South China Tobacco Breeding Research Centre (Yunnan province, Southwest China). 154 AFLP polymorphic fragments out of 561 fragments were used to assess the genetic diversity among 28 tobacco accessions. The average number of polymorphic bands per AFLP primer pair was 15.4. AFLPs seemed to be an effective classification tools for germplasm conservation and breeding. Limited genetic variation was detected within this group of accessions. The relationship of cultivars was estimated by cluster analysis based on AFLP data.

Ampelographic and molecular diversity among grapevine (Vitis spp.) cultivarsOriginal Paper

Ali SABIR, Semih TANGOLAR, Saadet BUYUKALACA, Salih KAFKAS

Czech J. Genet. Plant Breed., 2009, 45(4):160-168 | DOI: 10.17221/72/2008-CJGPB

This study presents the ampelographic and molecular characterization of 44 grapevine cultivars. Ampelographic data were obtained during two vegetation periods using the latest version of the descriptors. Based on the mean values transformed by the method indicated in IBPGR publications, a dendrogram was constructed. ISSR analysis was also employed to characterize the genotypes at the DNA level. Twenty primers, selected on the basis of their discriminating potential, generated a total of 157 bands, of which 140 were polymorphic. The dendrograms constructed by the two approaches were largely similar in both the clustering position and divergence of varietal...

Association between the HMW-glutenin subunits and gluten strength characteristics in khorassan wheat lines - Short CommunicationsShort Communication

Sandra Carmona, Leonor Caballero, Juan B. Alvarez

Czech J. Genet. Plant Breed., 2009, 45(4):169-172 | DOI: 10.17221/39/2009-CJGPB

Khorassan wheat (Triticum turgidum ssp. turanicum Jakubz em. A. Löve & D. Löve) is an ancient tetraploid wheat that was grown in the Mediterranean region and Near East. Sixteen lines differing in the composition of high-molecular-weight glutenin subunits (HMWGs) were evaluated for SDS-sedimentation volume and quality index (QI). The data suggested that the two subunit combinations detected in the examined materials at the Glu-B1 locus showed differences in both characteristics (relatively higher levels at the presence of the subunit combination 7+15 compared to 6+8). Weak gluten is in general characteristic of this wheat...