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145 Chandola A., Thapliyal, J. P. (1973) Effect of photoperiod on thyroid function of spotted munia, Lonchura punctulata . Gen. Comp. Endocrinol. 20 , 214

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( Hordeum vulgare L.) under different photoperiod regimes. Theor. Appl. Genet. , 94 , 612–618. Bedő Z. Effects of loci on chromosomes 2(2H) and 7(5H) on developmental patterns

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Acta Veterinaria Hungarica
Authors: Vera Faigl, Mónika Keresztes, Alíz Márton, Hedvig Fébel, Margit Kulcsár, Sándor Nagy, Sándor Cseh, László Solti and Gyula Huszenicza

526 539 Mabjeesh, S. J., Gal-Garber, O. and Shamay, A. (2007): Effect of photoperiod in the third trimester of gestation on milk production and circulating hormones in dairy

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Karsai, I., Mészáros, K., Szűcs, P., Hayes, P. M., Láng, L., Bedő, Z. (1999): Effects of loci determining photoperiod sensitivity (Ppd-H1) and vernalization response (Sh2) on agronomic traits in the Dicktoo x

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Beales, J., Turner, A., Griffiths, S., Snape, J.W., Laurie, D.A. 2007. Apseudo-response regulator is misexpressed in the photoperiod insensitive Ppd-D1a mutant of wheat ( Triticum aestivum L.). Theor. Appl

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Bani, A., Tabarsa, M., Falahatkar, B., Banan, A. (2009) Effects of different photoperiods on growth, stress and haematological parameters in juvenile great sturgeon Huso huso . Aqua. Res. 40 , 1899

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. 1997 43 211 216 Muguruma, F., Goto, S. G., Numata, H., Shiga, S. (2010) Effect of photoperiod on clock gene expression

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Biologia Futura
Authors: Muhammad Saad, Helen Mary, Umar Amjid, Ghulam Shabir, Kashif Aslam, Shahid Masood Shah and Abdul Rehman Khan

addition, it improves cognition and memory function ( Abbasi et al., 2013 ; Choi et al., 2013 ). Despite all these benefits, the cultivation of this crop is limited and reducing. Different environmental conditions especially temperature and photoperiod

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Pavgi, S., Chandola-Saklani, A.: Role of gonadal feed back in annual reproduction of weaver bird: interaction with photoperiod. Gen. Comp. Endocrinol. 31 , 72 (1981). Role of gonadal feed back in annual reproduction of weaver

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Ninety-nine wheat cultivars from six different agro-climatic zones of India were analyzed for the Vrn-1, Vrn-2, Vrn-B3, Vrn-4 and Ppd-D1 composition with DNA sequenced based allele specific or linked markers for the above-mentioned genes. A majority of the germplasm carried the dominant Vrn-A1a allele alone or in combination with Vrn-B1 and Vrn-D1. The three dominant genes were cumulatively present in 30 cultivars among all the zones, whereas double dominant combination, Vrn- A1/Vrn-B1 was identified in 18 cultivars, Vrn-A1/Vrn-D1 in 6 cvs and Vrn-B1/Vrn-D1 in 16 cvs. The combination of the dominant alleles of all three genes was most frequent in cvs of Northern Western Plains Zone. Northern Hill Zone had vrn-B1 and vrn-D1 alleles in higher proportions compared to the dominant alleles Vrn-B1 and Vrn-D1 indicating successful spring/winter wheat cross breeding. All of the cvs had the recessive Vrn-B3 allele. Most of the cvs had photoperiod insensitive allele in all the zones and only 9% cvs possessed the photoperiod sensitive allele (b) of the Ppd-D1 gene. This information will be useful in selecting parental lines for crossing to maximize diversity at these loci and for future molecular marker assisted breeding for cultivar improvement.

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