Abstract:
:The amount and distribution of genetic variation was investigated in 48 sorghum landrace accessions, representing 13 regions of origin and three adaptation zones (lowland, intermediate and highland elevation) in Ethiopia and Eritrea. Assaying 11 enzymes systems, 23 putative loci were scored for a total of 27 alleles. Nineteen loci were monomorphic and fixed for the same allele, while the remaining 4 loci, each with 2 alleles, were polymorphic across the 48 accessions. The results show significant differences in allele frequencies among the accessions, regions of origin and the adaptation zones. However, all measures of genetic variation used show that the accessions maintained much lower levels of variation than the corresponding mean values for self-pollinating crop plants, confirming previous conclusions that sorghum is depauperated in allozymic variation. The total gene diversity was 0.25, which partitioned 59% within and 41% among accessions. The latter was largely due to variation among accessions within the adaptation zones (38%), while only 3% was due to variation among accessions between the adaptation zones. Similarly, most of the total gene diversity was found within the regions of origin (80%) and within the adaptation zones (97%). Both the dendrogram constructed from NEI's unbiased genetic distance and the plot of the first two principal components distinguished three groups of regions. The level of gene flow was low among accessions, regions of origin and among accessions within adaptation zones, but high among adaptation zones. The results are discussed with emphasis on genetic resources conservation and utilization.
journal_name
Hereditasjournal_title
Hereditasauthors
Ayana A,Bryngelsson T,Bekele Edoi
10.1111/j.1601-5223.2001.t01-1-00001.xsubject
Has Abstractpub_date
2001-01-01 00:00:00pages
1-12issue
1eissn
0018-0661issn
1601-5223journal_volume
135pub_type
杂志文章相关文献
HEREDITAS文献大全abstract:Background:Recent large-scale genome-wide association studies (GWAS) have showed that the neuronal calcium signaling has pivotal roles in schizophrenia (SCZ) in populations of European of ancestry. However, it is not known if calcium signaling pathway genes are also associated with SCZ in Han Chinese population. Metho...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1186/s41065-017-0054-0
更新日期:2018-01-02 00:00:00
abstract::Behaviour of acrocentric chromosome synaptonemal complexes (SCs) and constitutive heterochromatin (C-band) during meiotic prophase I of the male domestic pig was studied using surface spreading and silver staining techniques. At late zygotene C-band regions of complete or incomplete SCs of the acrocentric chromosomes ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.1990.tb00065.x
更新日期:1990-01-01 00:00:00
abstract::Intergenomic translocations between wheat, Hordeum chilense and Hordeum vulgare have been obtained in tritordeum background. Advanced lines from the crosses between three disomic chromosome addition lines for chromosome 2Hv, 3Hv, and 4Hv of barley (Hordeum vulgare) in Triticum aestivum cv. Chinese Spring (CS) and hexa...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2001.t01-1-00171.x
更新日期:2001-01-01 00:00:00
abstract::Silver nitrate staining of rainbow trouts (Oncorhynchus mykiss) chromosomes, for the identification of the nucleolar organizing regions (NORs), revealed that in individuals from Núcleo Experimental de Salmonicultura de Campos do Jordão (Brazil) NORs were located in the long arms of submetacentric pair while in specime...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1034/j.1601-5223.2002.1360308.x
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:The methylenetetrahydrofolate reductase (MTHFR) rs1801131 A/C variant results in a decrease in MTHFR enzymatic activity, which may play an important role in folate metabolism and is also an important source of DNA methylation and DNA synthesis. Several case-control studies have been conducted to assess the a...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1186/s41065-020-00129-x
更新日期:2020-04-27 00:00:00
abstract::On the assumption that the survival of a parthenogenetic strain in nature relies on the strain's ability to compete with the bisexual population, we attempted to discern any diminution of competition between bisexual strains of Drosophila and parthenogenetic strains derived from them on the basis of light intensity pr...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.1992.tb00018.x
更新日期:1992-01-01 00:00:00
abstract::A PCR-amplified DNA, cMWG699, is linked to the vrs1 (formerly v) locus controlling 2- and 6-rowed spikelets. Restriction analysis of the amplified DNA of 65 varieties from Europe, America, and East Asia revealed 3 alleles, named types K, A and D. Two-rowed varieties were mostly of type K allele, and 6-rowed varieties ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.1999.00077.x
更新日期:1999-01-01 00:00:00
abstract::The banding pattern of the distal half, i.e., the divisions 51 through 60, of the salivary gland 2R chromosome in Drosophila melanogaster was studied using thin section electron microscopy. This chromosome region contains 280 single and 157 double bands on the Bridges' revised light microscopic map. Most of the single...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.1991.tb00549.x
更新日期:1991-01-01 00:00:00
abstract::Selection on endosperm traits among individual kernels is very important in maize because the characteristics of the kernel, especially the endosperm, are directly related to quality and yield. However the accuracy of the selection according to endosperm phenotype may be affected by heterofertilization. The objective ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2008.02056.x
更新日期:2008-10-01 00:00:00
abstract::Allelic diversity and inheritance of polymorphic sites of the intron III-exon IV region of the seed specific beta-amylase gene Bmy1 were studied in a set of 55 barley accessions composed mainly of old Latvian and Scandinavian commercial varieties and three Hordeum spontaneum lines from Israel. A CAPS-marker was used f...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2004.01789.x
更新日期:2004-01-01 00:00:00
abstract::In 1921 Hereditas published an article on the fall of Rome written by the famous classical scholar Martin P:son Nilsson. Why was a paper on this unexpected topic printed in the newly founded journal? To Nilsson, the demise of the Roman Empire was explained by the "bastardization" occurring between "races" from differe...
journal_title:Hereditas
pub_type: 传,历史文章,杂志文章
doi:10.1111/hrd2.00080
更新日期:2014-12-01 00:00:00
abstract::It has been reported that oxidative stress is a factor in cerebral infarction (CI). Extracellular superoxide dismutase (EC-SOD) is important in preventing oxidative stress, and the cerebral infarct size of EC-SOD knockout mice is significantly larger than that in wild-type controls. The aim of this study was to invest...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2008.02086.x
更新日期:2008-12-01 00:00:00
abstract::The highly invasive Chinese mitten crabs (Eriocheir sinensis) was studied to reveal the genetic relationship between three none self-sustainable population within the Polish Oder and Vistula River and Lake Vänern in Sweden. Crabs from self-sustainable populations were collected from the Elbe River (Germany), San Franc...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2012.02246.x
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:The Drosophila hindgut is commonly used model for studying various aspects of organogenesis like primordium establishment, further specification, patterning, and morphogenesis. During embryonic development of Drosophila, many transcriptional activators are involved in the formation of the hindgut. The transc...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1186/s41065-020-00160-y
更新日期:2020-11-19 00:00:00
abstract::Meiotic studies are carried out in 7 species of Eryngium L. (Saniculoideae, Apiaceae), belonging to both sections Foetida and Panniculata. The chromosome number of E. dorae Norm. (n=8) (Foetida) is reported for the first time, while the gametic chromosome number of E. nudicaule Lam. (n=7) (Foetida) and E. eburneum Dec...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2004.01795.x
更新日期:2004-01-01 00:00:00
abstract::Trees of 68 apple cultivars, aimed for preservation by the 'National Program for diversity of cultivated plants' as mandate cultivars, were analysed using a set of 10 SSR (simple sequence repeat) primer pairs and the self-incompatibility (S-)locus to evaluate genetic diversity and reveal inter-cultivar relationships. ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.0018-0661.2008.02042.x
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:The Mount Huang eastern honey bees (Apis cerana) are an endemic population, which is well adapted to the local agricultural and ecological environment. In this study, the genetic structure of seven eastern honey bees (A. cerana) populations from Mount Huang in China were analyzed by SSR (simple sequence repe...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1186/s41065-016-0010-4
更新日期:2016-07-06 00:00:00
abstract::Tos17 is a copia-like endogenous retrotransposon of rice, which can be activated by various stresses such as tissue culture and alien DNA introgression. To confirm element mobilization by introgression and to study possible structural and epigenetic effects of Tos17 insertion on its target sequences, we isolated all f...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2004.01808.x
更新日期:2004-01-01 00:00:00
abstract::Physical locations of 45S and 5S rDNA were detected in maize by fluorescence in situ hybridization (FISH). The FISH results on metaphase chromosome spreads showed the 45S rDNA was located just at the nucleolus organizer region (NOR) on 6S (the short arm) of chromosome 6) as expected, and 5S rDNA at the distal region o...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2001.00141.x
更新日期:2001-01-01 00:00:00
abstract::Chromosomal rearrangements have played a key role in the speciation of the New World sexual Artemia species (Crustacea, Anostraca) A. franciscana and A. persimilis. The species differ by a chromosome duplication (2n+2=44 in A. persimilis vs 2n=42 in A. franciscana), and a greater amount of heterochromatin (HCH) in A. ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2009.02109.x
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:The molecular out of Africa hypothesis, OOAH, has been considered as an established fact amid population geneticists for some 25-30 years despite the early concern with it among phylogeneticists with experience beyond that of Homo. The palaeontological support for the hypothesis is also questionable, a circu...
journal_title:Hereditas
pub_type: 杂志文章,评审
doi:10.1186/s41065-020-00163-9
更新日期:2020-12-19 00:00:00
abstract::Anhidrotic ectodermal dysplasia (EDA) is a genetic disease characterized by the absence or hypoplasia of hair, teeth and eccrine sweat glands that has been reported in humans, the tabby mouse mutants, cattle and dogs. The EDA gene on the X chromosome encodes a protein, ectodysplasin-A (EDA), which is responsible for E...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2010.02202.x
更新日期:2011-02-01 00:00:00
abstract::Temperature sensitive experiments on the interaction of Abruptex mutations of the Notch locus and Enhancer of split indicate that the effect of temperature on the development of macrochaeta and wing venation is different. This suggest that Notch affects the development of macrochaeta and wing venation in different and...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.1998.t01-1-00251.x
更新日期:1998-01-01 00:00:00
abstract::A recombinant inbred line (RIL) population from a cross between 'HH1B' and 'RSB02' (a deep-water rice variety with resistance to sheath blight) was planted in two locations for four different growing seasons. Seven traits were used to evaluate the disease severity, namely disease rating (DR), lesion length (LL), lesio...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/hrd2.00026
更新日期:2014-06-01 00:00:00
abstract::The association between recombination rate and diversity, but not divergence is considered to be driven mainly by natural selection: fixation of positively selected variants and associated hitchhiking effects and/or background selection eliminating deleterious alleles. In the present study, we investigated the relatio...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2010.02210.x
更新日期:2011-04-01 00:00:00
abstract::Hieracium is an established model system for studying the cytological and genetic basis of gametophytic apomixis. In common with most known apomicts, the formation of 'maternal seed' is not exclusive in Hieracium, as apomixis operates in conjunction with a low level of sexuality. When this occurs the form of apomixis ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1034/j.1601-5223.2003.01624.x
更新日期:2003-01-01 00:00:00
abstract::Four new chromosomal rearrangements are reported in the domestic pig: 3 reciprocal translocations, rcp(4;12)(p13;q13) in a crossbred boar, rcp(1;7)(q17;q26) in a Large White purebred boar, rcp(1;6)(q17;q35) in a purebred synthetic paternal line boar, and a pericentric inversion inv(2)(p13q11) in a crossbred boar. The ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2000.00055.x
更新日期:2000-01-01 00:00:00
abstract::High molecular weight glutenin subunit (HMW-GS) 1Bx23, an x-type subset encoded by Glu-B1p, which is only distributed in Triticum turgidum, was successfully transferred from hexaploid triticale to common wheat line SY95-71. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) shows that subunit 1Bx23 ...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.2006.0018-0661.01948.x
更新日期:2006-12-01 00:00:00
abstract::The karyotypes of the bat species Molossus ater, M. molossus (2n = 48; NF = 64) and Molossops planirostris (2n = 34; NF = 60) were analyzed by G-, C-banding, silver nitrate staining (AgNO3), base-specific fluorochromes and fluorescent in situ hybridization (FISH). The two species of Molossus presented the constitutive...
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1034/j.1601-5223.2003.01693.x
更新日期:2003-01-01 00:00:00
abstract::Two x-type high molecular weight glutenin subunits (HMW-GS) in Aegilops tauschii, 1Dx3(t) and 1Dx4(t) were identified by SDS-PAGE and MALDI-TOF-MS. Their complete coding sequences were isolated by AS-PCR. 1Dx3(t) and 1Dx4(t) genes consist of 2535 bp and 2508 bp and encode 845 and 836 amino acid residues, respectively....
journal_title:Hereditas
pub_type: 杂志文章
doi:10.1111/j.1601-5223.2011.02215.x
更新日期:2012-02-01 00:00:00