![](images/graphics/blank.gif)
Diploid species
-
Foxtail millet (Setaria italica) is a diploid C4 panicoid species. Because of its prominent drought resistance, small genome size, self-pollination, and short life cycle, foxtail millet has become an ideal model system for studying drought tolerance of crops. MicroRNAs (miRNAs) are endogenous, small RNAs that play important regulatory roles in the development and stress response in plants.
16p
vinarcissa
21-03-2023
4
1
Download
-
Acipenseriformes is a basal lineage of ray-finned fishes and comprise 27 extant species of sturgeons and paddlefishes. They are characterized by several specific genomic features as broad ploidy variation, high chromosome numbers, presence of numerous microchromosomes and propensity to interspecific hybridization.
12p
vinarcissa
21-03-2023
2
1
Download
-
The cultivated tetraploid cotton species (AD genomes) was originated from two ancestral diploid species (A and D genomes). While the ancestral Agenome species produce spinnable fibers, the D- genome species do not. Cotton fibers are unicellular trichomes originating from seed coat epidermal cells, and currently there is an immense interest in understanding the process of fiber initiation and development.
16p
vineville
08-02-2023
1
1
Download
-
Peach (Prunus persica L.) is a diploid species and model plant of the Rosaceae family. In the past decade, significant progress has been made in peach genetic research via DNA markers, but the number of these markers remains limited.
13p
vihagrid
30-01-2023
9
3
Download
-
In this study, the karyomorphology of 20 Turkish Centaurea (subgenus Cyanus) taxa was examined. The number of chromosomes of 11 taxa belonging to the subgenus Cyanus was determined for the first time. As a result of the karyomorphological studies, the number of basic chromosomes was determined to be x = 8, 10, and 12 in annuals and x = 10 and 11 in perennials. The populations are tetraploid in the seven perennial taxa and polyploidy is not rare for this group. On the other hand, all annual taxa are diploid.
13p
tudichquannguyet
29-11-2021
4
1
Download
-
Cytokinin is a classical phytohormone that plays important roles in numerous plant growth and development processes. In plants, cytokinin signals are transduced by a two-component system, which involves many genes, including cytokinin response factors (CRFs). Although CRFs take vital part in the growth of Arabidopsis thaliana and Solanum lycopersicum, little information of the CRFs in the Brassica U-triangle species has been known yet.
17p
vitzuyu2711
29-09-2021
10
1
Download
-
Solea senegalensis (Kaup, 1858) is a commercially important flatfish species, belonging to the Pleuronectiformes order. The taxonomy of this group has long been controversial, and the karyotype of the order presents a high degree of variability in diploid number, derived from chromosomal rearrangements such as Robertsonian fusions. Previously it has been proposed that the large metacentric chromosome of S. senegalensis arises from this kind of chromosome rearrangement and that this is a proto-sex chromosome.
11p
vitzuyu2711
29-09-2021
7
1
Download
-
Avocado (Persea americana Mill.) is a basal angiosperm from the Lauraceae family. This species has a diploid genome with an approximated size of ~ 920 Mbp and produces a climacteric, fleshy and oily fruit. The flowering and fruit set are particularly prolonged processes, lasting between one to three months, generating important differences in physiological ages of the fruit within the same tree.
14p
vigiselle2711
30-08-2021
11
1
Download
-
Hexaploid bread wheat (Triticum aestivum L) arose by two polyploidisation events from three diploid species with homoeologous genomes. Nullisomic-tetrasomic (nulli-tetra or NT) lines are aneuploid wheat plants lacking two and adding two of six homoeologous chromosomes.
17p
vigiselle2711
30-08-2021
6
1
Download
-
Yeasts of the genus Brettanomyces are of significant interest, both for their capacity to spoil, as well as their potential to positively contribute to different industrial fermentations. However, considerable variance exists in the depth of research and knowledgebase of the five currently known species of Brettanomyces.
14p
vijeeni2711
24-07-2021
8
0
Download
-
Triticum and Aegilops diploid species have morphological and genetic diversity and are crucial genetic resources for wheat breeding. According to the chromosomal pairing-affinity of these species, their genome nomenclatures have been defined.
11p
vijeeni2711
24-07-2021
14
0
Download
-
The genus Brassica mainly comprises three diploid and three recently derived allotetraploid species, most of which are highly important vegetable, oil or ornamental crops cultivated worldwide. Despite being extensively studied, the origination of B. napus and certain detailed interspecific relationships within Brassica genus remains undetermined and somewhere confused.
15p
vijeeni2711
24-07-2021
15
0
Download
-
An evolutionary model using diploid and allotetraploid cotton species identified 80 % of non-coding transcripts in allotetraploid cotton as being uniquely activated in comparison with its diploid ancestors. The function of the lncRNAs activated in allotetraploid cotton remain largely unknown.
13p
vilichoo2711
25-06-2021
11
1
Download
-
The identification of chromosomes among Avena species have been studied by C-banding and in situ hybridization. However, the complicated results from several cytogenetic nomenclatures for identifying oat chromosomes are often contradictory.
15p
vijichea2711
28-05-2021
8
1
Download
-
Wild species of cotton are excellent resistance to abiotic stress. Diploid D-genome cotton showed abundant phenotypic diversity and was the putative donor species of allotetraploid cotton which produce the largest textile natural fiber.
17p
vijichea2711
28-05-2021
14
1
Download
-
Glycoalkaloids are bioactive compounds that contribute to the defence response of plants against herbivore attack and during pathogenesis. Solanaceous plants, including cultivated and wild potato species, are sources of steroidal glycoalkaloids.
13p
vijichea2711
28-05-2021
8
1
Download
-
Inferring phylogenetic relationships of polyploid species and their diploid ancestors (leading to reticulate phylogenies in the case of an allopolyploid origin) based on multi-locus sequence data is complicated by the unknown assignment of alleles found in polyploids to diploid subgenomes.
9p
vicolorado2711
22-10-2020
12
0
Download
-
During the present study, mitotic chromosomes of freshwater snail Sphaerium indicum were studied using gills. The observed diploid chromosome number was 2n=30 consisting of 26 metacentric pairs and 04 submetacentric pairs respectively. Chromosomes were studied using Giemsa staining and two banding techniques viz. C-banding and Ag-NOR banding. Preliminary C-band studies revealed the presence of terminal blocks besides the presence of centromeric heterochromatin. The nucleolar organizer region (NOR) was found on one chromosome pair i.e. on the submetacentric chromosome pair no. 5.
6p
kethamoi5
03-06-2020
6
0
Download
-
During the present study, mitotic chromosomes of two freshwater snails Gyraulus ladacensis and Indoplanorbis exustus were analyzed using ovotestis of specimens collected from the type locality (Nud pond Samba, Jammu), both belonging to class Gastropoda, order Basommatophora and family Planorbidae. The observed diploid chromosome number was 2n=36 consisting of 14 metacentric pairs, 03 submetacentric pairs and 01 subtelocentric pairs and 18 pairs of metacentric pairs respectively. Meiotic observations comprised leptotene, zygotene, pachytene, diplotene and diakinesis stages.
8p
trinhthamhodang1213
30-05-2020
11
0
Download
-
Brassica includes many successfully cultivated crop species of polyploid origin, either by ancestral genome triplication or by hybridization between two diploid progenitors, displaying complex repetitive sequences and transposons.
13p
viminato2711
22-05-2020
14
0
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)