Linkage of a Quantitative and a Qualitative Character in Barley

Wexelsen, H.

doi:10.1111/j.1601-5223.1933.tb02592.x

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…A t the border of the canopy a wheat plant was sown as the 21st row-member. This is also standard border plant procedure (WEXELSEN 1933) to save the more valuable hybrid seed from growing into plants that are wasted because of the border effect.…”

Section: Methodsmentioning

confidence: 99%

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Genetic analysis of laxatum barley mutants

Larsson

2008

Hereditas

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Lax‐spiked (laxatum) mutants from the barley varieties Bonus (84 lines) and Foma (110 lines) were studied. Results from allelism tests within the cv: s are reported from 10 (67+10 lines) and 9 (67+35 lines) groups of mutants of each variety. In Bonus barley 5 loci were found to have 3 alleles, 11 loci to have 2 alleles, whereas among a rest of 40 lines allelism was not proven. In the Bonus material a previously unreported lax‐a allele was found. In Foma barley 1 locus was found to have 10 alleles, 1 to have 5. 1 to have 4, 3 loci to have 3, 9 to have 2, and among the remaining 56 lines allelism was not proven (including lines not tested). Of the 96 lines where studies were inconclusive, about 30 are of low value as markers because of low vitality and/or fertility and late maturity. Of the remainder, 40 lines are provisionally estimated to contain mutant genes that are non‐allelic to each other or to the multiallelic loci even when the test is completed also over their mother cv. boundaries. Tetraploidy, translocations, recessiveness, dominance or partial dominance were observed. Some of the barley lines carrying more than one mutant gene are also discussed.

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Section: Methodsmentioning

confidence: 99%

“…Parental lines were sown as close to the hybrids and as often as possible and so were the mother cv:s Bonus and Foma. These rules were adopted in response to the good advice of HUBER (1929) and WEXELSEN (1933) as well as the author's own experience.…”

Section: Methodsmentioning

confidence: 99%

Genetic analysis of laxatum barley mutants

Larsson

2008

Hereditas

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“…The first phenotypic marker in Drosophila melanogaster, was observed through experimental mutagenesis by T. Morgan and he established the first genetic linkage maps of Drosophila chromosomes [1]. Phenotypic markers are visual indicators of characters, such as colour, shape, size, and such observations, dating back over 100 years, aided the discovery of the arrangement and linkage of genes [2,3]. Even to this day, morphological markers are very useful tools in understanding genetics, breeding practices and act as a vital bridge between classical and molecular genetics.…”

Section: Introductionmentioning

confidence: 99%

Aeroplane Wing, a New Recessive Autosomal Phenotypic Marker in Malaria Vector, Anopheles Stephensi Liston

Ghosh,

Soumya,

Kumar

et al. 2023

Preprint

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“…The entire process is laborious and timeconsuming, including numerous crosses, many generations, and attentive phenotypic investigation, and the linkage drag make it more difficult to attain the wanted results. Though genetic markers appeared to be used early in works of literature (Sax, 1932;Wexelsen, 1933) but the development of molecular markers has greatly enhanced our understanding of life sciences. Molecular markers are constant landmarks in the genome, they are not genes because they do not have any biological effect.…”

Section: Introductionmentioning

confidence: 99%