Results 141 to 150 of about 2,201 (178)

FERTILITY OF BARLEY AUTOTETRAPLOIDS: I. FERTILITY IN SUCCESSIVE GENERATIONS OF FOUR AUTOTETRAPLOID BARLEY VARIETIES AND THE EFFECT OF SELECTION FOR FERTILITY IN THE O.A.C. 21 AUTOTETRAPLOID

Canadian Journal of Plant Science, 1959
The differences in fertility of four colchicine-induced autotetraploid barley varieties (Brant, Montcalm, O.A.C. 21 and York) were determined and compared in four successive generations following the induction of tetraploidy. Despite a wide fertility range within each autotetraploid, the varieties tested varied considerably in their mean per cent ...
E. Reinbergs, L. H. Shebeski
openaire   +1 more source

Some aspects of autotetraploid population dynamics

Theoretical and Applied Genetics, 1989
Self-compatible autotetraploids are likely to set much of their seed by selfing. Formulae are presented for the frequencies in any generation of states of loci, from homozygous to quadri-allelic, considering the frequencies of selfing and of double reduction but not allowing for the effects of inbreeding depression on population structure. The changing
openaire   +2 more sources

Selection with truncation in autotetraploids comparison with diploids

Theoretical and Applied Genetics, 1975
Using the general principle of linear prediction for autotetraploids in the absence of epistasis, we envisage different types of individual selection with truncation: mass selection, general combining ability selection, and selection on progenies from self fertilization. General expressions for the first cycle of selection are given.
openaire   +2 more sources

Pseudo-Quadrivalents in Autotetraploid Rice

Nature, 1963
IN the course of a statistical examination of chromosome pairing in PMC's of various induced tetraploid forms of Oryza sativa, I have found a regular decrease of the quadrivalent frequency from diakinesis to metaphase I. For 533 cells observed at diakinesis and 741 at metaphase, the mean numbers of quadrivalents per cell were respectively 7.61 and 6.25
openaire   +1 more source

Autotetraploid rice: challenges and opportunities.

Yi chuan = Hereditas, 2023
Autotetraploid rice is a type of germplasm developed from the whole genome duplication of diploid rice, leading to large grains, high nutrient content, and resistance. However, its low fertility has reduced yield and hampered commercialization. To address this issue, a new type of high fertility tetraploid rice was developed, which may serve as a ...
Xiang-Dong, Liu, Jin-Wen, Wu, Zi-Jun, Lu, Muhammad, Qasim Shahid   +3 more
openaire   +1 more source

Meiosis in Autotetraploid Secale cereale

Botanical Gazette, 1943
1. Meiosis in autotetraploid Secale cereale is characterized by multivalent associations, inversion or duplication bridges, univalent bridges, univalent laggards and nonlaggards, irregular anaphase distributions, and chromosome loss. 2. The degree of anaphase irregularity is so low as to indicate that the spindle mechanism is as precise in the ...
openaire   +1 more source

Selfing of autotetraploids

Biometrische Zeitschrift, 1969
openaire   +1 more source

Methylome and transcriptome analysis of alters leaf phenotype with autotetraploid in grape

Scientia Horticulturae, 2023
Jh Chang, Jianghui Cui, Xiaodong Xiang   +2 more
exaly  

Comparative transcriptome analysis of salt tolerance of roots in diploid and autotetraploid citrus rootstock (C. junos cv. Ziyang xiangcheng) and identification of salt tolerance-related genes

Scientia Horticulturae, 2023
Xiao-Meng Wu, Wenwu Guo, Fengquan Tan
exaly  

Evaluating the Differential Response of Transcription Factors in Diploid versus Autotetraploid Rice Leaves Subjected to Diverse Saline–Alkali Stresses

Genes, 2023
Ningning Wang, Yingkai Wang, Weilong Meng   +2 more
exaly