Cytogenetic analysis of four central Amazonian species of Colostethus (Anura - Dendrobatidae) with a diploid complement of 22 chromosomes.

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

authors： Li L,Arumuganathan K

更新日期：2001-01-01 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

authors： O'Leary N,Calviño CI,Greizerstein E,Martínez S,Poggio L

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND:Until recently, mechanisms of segmentation established for Drosophila served as a paradigm for arthropod segmentation. However, with the discovery of gene expression waves in vertebrate segmentation, another paradigm based on oscillations linked to axial growth was established. The Notch pathway and hairy de...

journal_title：Hereditas

authors： Hunding A,Baumgartner S

更新日期：2017-04-27 00:00:00

abstract：:Alloploids, most of them hexaploid, from crosses between tetraploid wheat, Triticum carthlicum, and the perennial tetraploid Thinopyrum junceiforme were analysed for chromosome composition, stability and fertility using genomic in situ hybridization and meiotic analysis. The alloploids differed in their total number o...

journal_title：Hereditas

authors： Ellneskog-Staam P,Merker A

更新日期：2002-01-01 00:00:00

abstract：:The C-band heterochromatin polymorphism of chromosomes 1, 9, and 16 was studied in lymphocytes from 52 lung cancer patients and 183 control persons. No significant differences between the controls and patients were found regarding heterochromatin block size, the frequency of partial and total inversions, or the symmet...

journal_title：Hereditas

authors： Kristoffersson U,Berger R,Bernheim A,Desatnik P,Heim S,Mandahl N,Olsson H,Mitelman F

更新日期：1989-01-01 00:00:00

abstract：:Amplified fragment length polymorphism (AFLP) DNA markers were used to characterize the genetic diversity and relationships in wild species of the genus Aegilops. Fifty populations, which included the species Aegilops biuncialis (UUMM), Ae. neglecta (UUMMNN), Ae. ovata (UUMM), Ae. ventricosa (DDNN) and Ae. triuncialis...

journal_title：Hereditas

authors： Monte JV,De Nova PJ,Soler C

更新日期：2001-01-01 00:00:00

abstract：:Heredity can be followed in persons or in genes. Persons can be identified only a few generations back, but simplified models indicate that universal ancestors to all now living persons have occurred in the past. Genetic variability can be characterized as variants of DNA sequences. Data are available only from living...

journal_title：Hereditas

authors： Rasmuson M

更新日期：2008-02-01 00:00:00

abstract：:Asexual forms of invertebrates are relatively common. They are often more successful than their sexual progenitors. Especially in insects, the pattern called geographical parthenogenesis shows that asexuality is important in speciation and ecological adaptation. In geographical parthenogenesis the clones have a wider ...

journal_title：Hereditas

authors： Lundmark M,Saura A

更新日期：2006-12-01 00:00:00

abstract：:Dormancy release is an important phenological stage, which determines plant growth and survival in northern temperate regions. Spring bud flushing was studied in a Salix pedigree (n=82) derived from a cross between the male hybrid clone "Björn" (Salix viminalis x Salix schwerinii) and the female clone "78183" (Salix v...

journal_title：Hereditas

authors： Tsarouhas V,Gullberg U,Lagercrantz U

更新日期：2003-01-01 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

authors： Tanno K,Takaiwa F,Oka S,Komatsuda T

更新日期：1999-01-01 00:00:00

abstract：:The banding pattern of the proximal half of the polytene salivary gland X chromosome of Drosophila melanogaster was studied using thin section electron microscopy. The bands were identified according to Bridges' revised light microscopic map. On Bridges' map, the divisions 11 to 20 contain 112 single bands and as many...

journal_title：Hereditas

authors： Saura AO,Heino TI,Sorsa V

更新日期：1993-01-01 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

authors： Sjakste T,Röder M

更新日期：2004-01-01 00:00:00

abstract：:A total of 1050 sorghum (Sorghum bicolor) and tef (Eragrostis tef) fields distributed in six study sites within north Shewa and south Welo (Central Highlands of Ethiopia) were systematically surveyed to examine the status of integration of edible oil crops into the cereal-based farming system. Farmers' criteria for, a...

journal_title：Hereditas

authors： Geleta M,Asfaw Z,Bekele E,Teshome A

更新日期：2002-01-01 00:00:00

abstract：:Variation of the size of silver-stained nucleolar organizer regions (NORs) of chromosomes 10 and 8 was studied in pigs of six breeds (Sus scrofa L.). The silver deposits were quantified by image analysis and the results were normalized for each Ag-NOR chromosome. In general, normalized values for chromosomes 10 were h...

journal_title：Hereditas

authors： Mellink CH,Bosma AA,De Haan NA

更新日期：1994-01-01 00:00:00

abstract：:Relative courtship success of mutant Drosophila melanogaster males was found to vary with sex ratio. Males with one of three recessive mutants: White, vermilion, or vestigial, competed with wild type males for females. Female-biased sex ratios were associated with increased success of all three different mutant phenot...

journal_title：Hereditas

authors： Just J,Markow T

更新日期：1989-01-01 00:00:00

abstract：:Lymphocytes from 21 male smokers, 10 untreated lung cancer patients, and 11 controls were cultured with and without exposure to mitomycin C. There were no differences between the chromosome aberration frequencies in the two groups: the spontaneous aberration frequency was 8.5% among patients and 8.4% among controls, w...

journal_title：Hereditas

authors： Johansson M,Orndal C

更新日期：1989-01-01 00:00:00

abstract：:Maize is the third important major food crop. Breeding for low phytate maize genotypes is an effective strategy for decreasing the content of kernel phytic acid (a chelator of cations such as Ca(2+) and Fe(3+) ) and thereby increasing the bioavailability of nutritive minerals in human diet and animal feed. Previous st...

journal_title：Hereditas

authors： Sureshkumar S,Tamilkumar P,Senthil N,Nagarajan P,Thangavelu AU,Raveendran M,Vellaikumar S,Ganesan KN,Balagopal R,Vijayalakshmi G,Shobana V

更新日期：2014-02-01 00:00:00

abstract：:In several branches derived from an inbred line of Drosophila melanogaster, transitions from R- to I-type in the I-R system have been observed. After a recent split into two branches of an R-type (+)-K subline, one branch showed, on retesting, an alteration to I-type. Genome from the R-type (+)-K branch was introduced...

journal_title：Hereditas

authors： Wu X

更新日期：1990-01-01 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

authors： Hildebrandt K,Bach N,Kolb D,Walldorf U

更新日期：2020-11-19 00:00:00

abstract：:Plant height and tiller number are two important characters related to yield in rice (Oriza sativa L.). Zhenshan97 x Minghui63 recombinant inbred lines were employed to dissect the genetic basis of development of plant height and tiller number using conditional and unconditional composite interval mapping approaches. ...

journal_title：Hereditas

authors： Yang G,Xing Y,Li S,Ding J,Yue B,Deng K,Li Y,Zhu Y

更新日期：2006-12-01 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

authors： Ogino A,Kohama N,Ishikawa S,Tomita K,Nonaka S,Shimizu K,Tanabe Y,Okawa H,Morita M

更新日期：2011-02-01 00:00:00

abstract：BACKGROUND:Tomatoes provide a significant dietary source of the carotenoids, lycopene and β-carotene. During ripening, carotenoid accumulation determines the fruit colors while chlorophyll degradation. These traits have been, and continue to be, a significant focus for plant breeding efforts. Previous work has found st...

journal_title：Hereditas

authors： Manoharan RK,Jung HJ,Hwang I,Jeong N,Kho KH,Chung MY,Nou IS

更新日期：2017-01-11 00:00:00

abstract：BACKGROUND:The Aedes aegypti mosquito is a threat to human health across the globe. The A. aegypti genome was recently re-sequenced and re-assembled. Due to a combination of long-read PacBio and Hi-C sequencing, the AaegL5 assembly is chromosome complete and significantly improves the assembly in key areas such as the ...

journal_title：Hereditas

authors： Nowling RJ,Behura SK,Halfon MS,Emrich SJ,Duman-Scheel M

更新日期：2021-01-28 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

authors： Han FP,Liu ZL,Tan M,Hao S,Fedak G,Liu B

更新日期：2004-01-01 00:00:00

abstract：:Low polymorphism in cultivated watermelon has been reported in previous studies, based mainly on US Plant Introductions and watermelon cultivars, most of which were linked to breeding programmes associated with disease resistance. Since germplasm sampled in a putative centre of origin in southern Africa may harbour co...

journal_title：Hereditas

authors： Mujaju C,Sehic J,Werlemark G,Garkava-Gustavsson L,Fatih M,Nybom H

更新日期：2010-08-01 00:00:00

abstract：:Five new cases of reciprocal translocation in the domestic pig are described. Three of them, rep(3;5)(p1.3;q2.3), rep(6;13)(p1.5;q4.1) and rep(13;17)(q4.1;q1.1) were found in boars with decreased litter size. The remaining two were identified in animals karyotyped before reproduction: a young boar, rep(4;6)(q2.1;q2.8)...

journal_title：Hereditas

authors： Ducos A,Pinton A,Berland HM,Seguela A,Blanc MF,Darre A,Darre R

更新日期：1998-01-01 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

authors： Prieto P,Ramírez MC,Ballesteros J,Cabrera A

更新日期：2001-01-01 00:00:00

abstract：Background:Jerusalem artichoke (Helianthus tuberosus L.) is a characteristic crop in the Qinghai-Tibet Plateau which has rapidly developed and gained socioeconomic importance in recent years. Fructans are abundant in tubers and represent the foundation for their formation, processing and utilization of yield; and are a...

journal_title：Hereditas

authors： Yang S,Sun X,Jiang X,Wang L,Tian J,Li L,Zhao M,Zhong Q

更新日期：2019-02-06 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

authors： Bicknell RA,Lambie SC,Butler RC

更新日期：2003-01-01 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

authors： Parraguez M,Gajardo G,Beardmore JA

更新日期：2009-05-01 00:00:00