Comparison of genetic variability among anther-derived and ovule-derived doubled haploid lines of tobacco.

The effect of complete homozygosity and homogeneity on stability of grain yield in barley was studied in 38 doubled haploid lines derived from F1 plants of six biparental crosses. The number of doubled haploid lines in each cross ranged from 3 to 12. These along with 13 check cultivars were evaluated at five locations in Ontario in 1975 and 1976. The linear regression method proposed by Eberhart and Russell in 1966 was used to analyze the stability of grain yield. In general, the response of doubled haploid lines to different environments, based upon the regression coefficient, did not differ from the response of the check cultivars. Similar responses were also observed among check cultivars, among crosses, and among doubled haploid lines within crosses. Furthermore, the pooled deviation from regression mean squares for the check cultivars was not different from that for the doubled haploid lines. The mean yield of the doubled haploid lines was as high as that of the check cultivars. Significant differences in mean yield among crosses was not detectable but considerable genetic variability in grain yield was found among lines within three of the crosses. It appears that under Ontario conditions homogeneous and homozygous lines derived by the doubled haploid method are as good agronomically and have yields as stable as the licensed cultivars developed by conventional breeding methods.

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Karakter Agronomi Galur Padi Dihaploid Asal Kultur Antera Hasil Persilangan Three Way Cross

Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) ◽

10.24831/jai.v46i1.16187 ◽

2018 ◽

Vol 46 (1) ◽

pp. 9

Author(s):

Mohammad Syafii ◽

Bambang Sapta Purwoko ◽

Iswari Saraswati Dewi ◽

Dan Willy Bayuardi Suwarno

Keyword(s):

Genetic Variability ◽

Anther Culture ◽

Doubled Haploid ◽

Block Design ◽

Broad Sense ◽

Yield Potential ◽

Broad Sense Heritability ◽

High Genetic Variability ◽

Doubled Haploid Lines ◽

Agronomic Character

Anther culture is useful tool in rice breeding. The technique shortens the time to obtain full homozygous plant in just one generation. Information related to genetic variability among the regenerants is important for further analysis including selection activities. The objective of this study was to analyze agronomic character variability and yield potential among doubled-haploid lines (DH0) derived from anther culture. This study was carried out in Center for Agricultural Biotechnology and Genetic Resources Research and Development (BB Biogen) from October 2016 to February 2017. The experiment was arranged in randomized complete block design (RCBD) with three replications. Forty eight doubled haploid lines derived from anther culture and three check varieties were evaluated. The results showed high genetic variability as well as broad sense heritability (more than 90%) for all variables tested. Several lines showed superior agronomic characters compared to check (Ciherang, Inpari 18, Inpago 10). Anther culture could generate high genetic variability for further selection. Keywords: anther culture, broad sense heritability, haploid technology

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Genetic Variability, Heritability and Genetic Advance of Yield Attributing Trait in Doubled Haploid Lines of Chilli (Capsicum annuum L.) cv., Byadgi Dabbi

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2020.908.433 ◽

2020 ◽

Vol 9 (8) ◽

pp. 3749-3754

Author(s):

Bhaganna Haralayya ◽

H. D. Mohan Kumar ◽

Nagarajappa Adivappar ◽

S. Gangaprasad ◽

B. R. Gurumurthy ◽

...

Keyword(s):

Genetic Variability ◽

Capsicum Annuum ◽

Doubled Haploid ◽

Genetic Advance ◽

Doubled Haploid Lines ◽

Capsicum Annuum L

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Mapping quantitative trait loci for drought tolerance/susceptibility indices and estimation of breeding values of doubled haploid lines in wheat (Triticum aestivum)

Crop and Pasture Science ◽

10.1071/cp20526 ◽

2021 ◽

Author(s):

Mahdiyeh Salarpour ◽

Roohollah Abdolshahi ◽

Hassan Pakniyat ◽

Bahram Heidari ◽

Somayeh Aminizadeh

Keyword(s):

Triticum Aestivum ◽

Quantitative Trait Loci ◽

Drought Tolerance ◽

Doubled Haploid ◽

Quantitative Trait ◽

Breeding Values ◽

Doubled Haploid Lines ◽

Trait Loci

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COMPARAISON ENTRE DES LIGNEES PEDIGREES ET DES LIGNEES HAPLOIDES DOUBLEES CHEZ L’ORGE (HORDEUM VULGARE L.)

Canadian Journal of Plant Science ◽

10.4141/cjps80-011 ◽

1980 ◽

Vol 60 (1) ◽

pp. 79-85 ◽

Cited By ~ 4

Author(s):

PIERRE TURCOTTE ◽

C. A. ST-PIERRE ◽

KEH MING HO

Keyword(s):

Hordeum Vulgare ◽

Doubled Haploid ◽

Doubled Haploids ◽

Block Design ◽

Pure Line ◽

Kernel Weight ◽

Hordeum Vulgare L ◽

Line Production ◽

Doubled Haploid Lines ◽

Time Required

Pedigree and doubled haploid lines from seven crosses of barley (Hordeum vulgare L.) were compared over 2 years. The lines were tested, in a randomized complete block design, in row plots at Ste-Foy in 1977 and in hill plots at Brawley, California in 1978. There are significant differences between the two methods of pure line production for grain yield, 1000-kernel weight, plant height, resistance to lodging and date of maturity. Furthermore, these significant differences between doubled haploid and pedigree lines seem to be tied to wide crosses. After showing that doubled haploids are superior for resistance to lodging, we conclude that the use of doubled haploid lines must be seriously considered in a barley breeding program on the basis of improved selection efficiency and the short time required to get homozygous lines.

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