Results 51 to 60 of about 10,564 (190)

Improved Autotetraploid Induction Methods in Four Diploid Wild Peanut Species: Arachis duranensis, A. stenosperma, A. magna, and A. batizocoi

open access: yesPlant Breeding, EarlyView.
ABSTRACT Peanut (Arachis hypogaea L., 2n = 4x = 40, AABB) is an important legume crop worldwide. Wild peanuts (Arachis spp.) represent a valuable secondary gene pool with diverse disease resistances. However, most wild peanut species are diploid (2n = 2x = 20) and this ploidy barrier is a major obstacle to hybridization and gene introgression.
Chia‐Hung Shih   +4 more
wiley   +1 more source

Sonographic features of the triploid fetus

open access: yesAmerican Journal of Obstetrics and Gynecology, 1987
The sonographic characteristics of six viable triploid fetuses, with gestational ages ranging from 16 to 33 weeks, are presented. Each pregnancy was associated with decreased amniotic fluid volume, a significant lag in biparietal diameter and femur length, and severe head-to-body disproportion.
C, Lockwood   +3 more
openaire   +2 more sources

Triploidy in the hematology of jundia juveniles (Siluriformes: Heptapteridae)

open access: yesBrazilian Journal of Biology
This study compared the hematological characteristics of diploid and triploid of jundia, Rhamdia quelen juveniles, an important freshwater fish cultured in south Brazil.
H Fukushima   +4 more
doaj   +1 more source

Cultivar‐Specific Production of Unreduced Pollen in the Ornamental Bigleaf Hydrangea (Hydrangea macrophylla ssp. macrophylla)

open access: yesPlant Breeding, EarlyView.
ABSTRACT Unreduced gametes naturally promote polyploidization and are valuable in breeding polyploid offspring. Bigleaf hydrangea (Hydrangea macrophylla ssp. macrophylla), a major ornamental crop, has shown spontaneous polyploidization rates ranging from 0% to 94% in previous crosses.
Conny Tränkner, Anke Müller
wiley   +1 more source

The chloroplast genome of the allotriploid, Paeonia × lemoinei cv. Oukan, and its phylogenetic implications

open access: yesMitochondrial DNA. Part B. Resources
The chloroplast genome of Paeonia × lemoinei cv. Oukan, a newly identified allotriploid from Paeonia sect. Moutan, shows typical tree peony features in size, structure, and gene content. A maximum-likelihood phylogenetic analysis revealed cv.
Mingyang Hao   +8 more
doaj   +1 more source

Stress‐specific metabolic and physiological responses to drought and waterlogging in Allium cepa L. and Allium × cornutum Clementi ex Vis.

open access: yesPlant Biology, EarlyView.
Drought and waterlogging induce distinct species‐specific metabolic, physiological and transcriptional responses in Allium cepa and Allium × cornutum. Abstract Increasing variability in water availability, caused by changing climatic conditions, is a major constraint for onion production.
Ž. Fredotović   +5 more
wiley   +1 more source

Estimation of the proportion of triploids in populations with diploid and triploid individuals.

open access: yesThe Journal of heredity, 1998
Populations with diploid and triploid individuals co-occur in various plant and animal species, but detecting their relative frequencies is problematic. Microsatellite markers can be used to detect triploids that have three distinct alleles at a given locus, but cannot identify triploids that are partially or fully homozygous (i.e., possessing two or ...
Krieger MJ, Keller L
openaire   +2 more sources

Effects of crossing distance on components of fitness in two rare rock plants

open access: yesPlant Biology, EarlyView.
Crossing experiments between populations of the rare rock species Saxifraga rosacea ssp. rosacea (8×) and S. rosacea ssp. sponhemica (6×) resulted in heterosis for some traits and outbreeding depression for others. Crossing the two subspecies resulted in sterile hybrids indicating that mixing populations of rare species is not always beneficial ...
G. Colling, L. Decanter, D. Matthies
wiley   +1 more source

Genome-wide identification and expression analysis of GRAS transcription factors under cold stress in diploid and triploid Eucalyptus

open access: yesFrontiers in Genetics
The GRAS [GRI (Gibberellic Acid Insensitive), RGA (Repressor of GAI-3 mutant), and SCR (Scarecrow)] transcription factors play a pivotal role in the development and stress responses of plants.
Jiannan Liu   +4 more
doaj   +1 more source

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