Genetic Diversity inBrassica oleraceaL. (Cruciferae) and Wild Relatives (2n=18) using Isozymes

Lázaro, Almudena; Aguinagalde, Itziar

doi:10.1006/anbo.1998.0762

Cited by 48 publications

(29 citation statements)

References 30 publications

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“…The plants are perennial and up to 150 cm high, with white or yellow, insect-pollinated flowers that develop into siliqua. Preliminary analyses of electrophoretic variation show that B. cretica is outcrossing (few deviations from Hardy-Weinberg equilibrium) and that populations on Crete have undergone extensive divergence at allozyme loci (mean F ST = 0.61, B Widén, unpublished data; see also Lázaro and Aguinagalde, 1998).…”

Section: Methodsmentioning

confidence: 99%

“…In the present study of Brassica cretica Lam, a wild relative of the cultivated cabbage, B. oleracea L. (Lázaro and Aguinagalde, 1998), we have analysed progeny from an extensive crossing experiment, involving self-pollinations, random outcrosses within populations and crosses between populations or species, to assess the relationship between crossing distance and FA in cotyledon morphology. Because measures of asymmetry tend to be population-and environment-specific (Clarke, 1998), all crossing treatments were replicated across seven populations and all progeny were raised in the same environment.…”

Section: Introductionmentioning

confidence: 99%

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Developmental stability in Brassica cretica: the effect of crossing distance on fluctuating asymmetry in cotyledon morphology

2002

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In the present investigation of Brassica cretica, a wild relative of the cultivated cabbage, B. oleracea, we performed an extensive crossing experiment, involving self-pollinations, random outcrosses within populations and hybridizations between populations or species, to evaluate the relationship between crossing distance and developmental stability, estimated as the absolute difference between the right and left lobe of the cotyledons. The frequency distribution of the right-minus-left scores had a narrower peak than expected for normally-distributed data, but there was no directional asymmetry or antisymmetry. Despite evidence for inbreeding depression in seedling biomass and cotyledon size, the type of cross had negligible influence on cotyledon asymmetry. Separate analyses of between-population hybrids

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Developmental stability in Brassica cretica: the effect of crossing distance on fluctuating asymmetry in cotyledon morphology

2002

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“…Brassica montana which is also found in cluster 5 has previously been considered to be an intermediate taxon between the Sicilian group and B. oleracea subsp. oleracea (Lázaro and Aguinagalde 1998b), although RFLP-cpDNA analysis has shown that B. montana is related to both, the B. rapa and the B. oleracea cytoplasm (Song and Osborn 1992). Interestingly, cultivated forms including B. oleracea Reliant (var.…”

Section: Discussionmentioning

confidence: 99%

Cytoplasmic diversity of Brassica napus L., Brassica oleracea L. and Brassica rapa L. as determined by chloroplast microsatellite markers

Zamani-Nour

Clemens

Möllers

2012

Genet Resour Crop Evol

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Cytoplasmic genomes in most angiosperms are known to be maternally inherited. Oilseed rape (Brassica napus L.) as a natural amphidiploid species hence may carry the B. oleracea L. or the B. rapa L. cytoplasm, depending on the cross direction. The presence of either the B. oleracea or the B. rapa cytoplasm in oilseed rape has been reported to affect agronomically important traits. However, to date little is known about the cytoplasmic composition and genetic diversity of current winter oilseed rape cultivars and breeding material. The aim of this study was to assess the usefulness of 40 previously published chloroplast cpSSR markers from Brassica species and Arabidopsis thaliana (L.) Heynh. for distinguishing the cytoplasms of 49 different genotypes of B. napus and its diploid ancestor species. Results showed that only 14 out of the 40 tested primer combinations were suitable to distinguish the cytoplasms of a test set of 8 Brassica genotypes. With the 14 primer pairs 64 different cpSSR alleles were identified in the set of 49 genotypes. Cluster analysis indicated distinct groups for the cytoplasms of B. napus, B. rapa, and B. oleracea. However, an unambiguous identification and classification of the cytoplasm types was not possible in all cases with the available polymorphic set of cpSSR primer pairs.

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“…acephala has shown to be possible (Pelgrom et al 2015), although fertility of the hybrid is an issue. The species B. villosa, B. incana, B. cretica, B. insularis, B. macrocarpa, B. montana, B. rupestris, B. bourgeaui, B. hilarionis and B. drepanensis belong to the B. oleracea complex (n = 9), and interspecific crosses with B. oleracea are possible (von Bothmer et al 1995;Lazaro and Aguinagalde 1998;Faulkner et al 1998). Among these species we found promising accessions in the field and medium levels of mean number of D. radicum in the greenhouse.…”

Section: Selection Of Resistant Plantsmentioning

confidence: 99%

Antibiosis resistance against larval cabbage root fly, Delia radicum, in wild Brassica-species

Shuhang

Voorrips²,

Steenhuis-Broers³

et al. 2016

Euphytica

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Cabbage root flies (Delia radicum) are a major threat to cabbage production in Western Europe and North America. Host plant resistance is the most promising option in controlling cabbage root fly damage. In a no-choice field test, we evaluated 94 accessions belonging to 16 Brassica-species for antibiosis resistance against the larvae. Thirteen accessions were selected as putatively resistant, which were subsequently re-tested in the greenhouse. The proportion of eclosed flies was introduced as the main parameter to assess antibiosis in the greenhouse, together with other insect and plant parameters. High levels of antibiosis resistance were identified in B. fruticulosa PI663081 and B. spinescens BRA2994, with significantly lower proportions of eclosed flies (1 % of the number of eggs used for infestation) compared to other accessions. Both species are difficult to cross with B. oleracea. Plants with a high level of antibiosis and medium to high tolerance were found in several accessions of other Brassica species (B. villosa BRA2922, B. montana BRA2950, B. hilarionis HRIGU12483, B. macrocarpa BRA2944) which are more amenable for crossing with B. oleracea. Selection of the most resistant plants belonging to these accessions may yield promising candidates for breeding cabbages resistant to Delia radicum.

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Genetic Diversity inBrassica oleraceaL. (Cruciferae) and Wild Relatives (2n=18) using Isozymes

Cited by 48 publications

References 30 publications

Developmental stability in Brassica cretica: the effect of crossing distance on fluctuating asymmetry in cotyledon morphology

Developmental stability in Brassica cretica: the effect of crossing distance on fluctuating asymmetry in cotyledon morphology

Cytoplasmic diversity of Brassica napus L., Brassica oleracea L. and Brassica rapa L. as determined by chloroplast microsatellite markers

Antibiosis resistance against larval cabbage root fly, Delia radicum, in wild Brassica-species

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