Expression and genetic variation of theAplysia egg-laying hormone gene family in the atrial gland

1997 ◽  
Vol 2 (4) ◽  
pp. 261-271 ◽  
Author(s):  
Alexander Kurosky ◽  
Edwin L. Gorham ◽  
Walter R. A. Van Heumen ◽  
Anna T. Garcia ◽  
John S. Smith ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Gene Family ◽  
Egg Laying ◽  
Atrial Gland

scholarly journals Evidence for the expression of three genes encoding homologous atrial gland peptides that cause egg laying in Aplysia.

1986 ◽  
Vol 261 (17) ◽  
pp. 7853-7859
Author(s):  
G T Nagle ◽  
S D Painter ◽  
J E Blankenship ◽  
J D Dixon ◽  
A Kurosky
Keyword(s):  
Egg Laying ◽  
Atrial Gland ◽  
Genes Encoding

Clinical and therapeutic significance of genetic variation in the GRIN gene family encoding NMDARs

2021 ◽  
pp. 108805
Author(s):  
Tim A. Benke ◽  
Kristen Park ◽  
Ilona Krey ◽  
Chad R. Camp ◽  
Rui Song ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Gene Family

scholarly journals Contrasting genetic variation and positive selection followed the divergence of NBS-encoding genes in Asian and European pears

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Manyi Sun ◽  
Mingyue Zhang ◽  
Jugpreet Singh ◽  
Bobo Song ◽  
Zikai Tang ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Disease Resistance ◽  
Positive Selection ◽  
Gene Family ◽  
Selection Pressure ◽  
Black Spot ◽  
Orthologous Gene ◽  
European Pear ◽  
Encoding Gene ◽  
Encoding Genes

Abstract Background The NBS disease-related gene family coordinates the inherent immune system in plants in response to pathogen infections. Previous studies have identified NBS-encoding genes in Pyrus bretschneideri (‘Dangshansuli’, an Asian pear) and Pyrus communis (‘Bartlett’, a European pear) genomes, but the patterns of genetic variation and selection pressure on these genes during pear domestication have remained unsolved. Results In this study, 338 and 412 NBS-encoding genes were identified from Asian and European pear genomes. This difference between the two pear species was the result of proximal duplications. About 15.79% orthologous gene pairs had Ka/Ks ratio more than one, indicating two pear species undergo strong positive selection after the divergence of Asian and European pear. We identified 21 and 15 NBS-encoding genes under fire blight and black spot disease-related QTL, respectively, suggesting their importance in disease resistance. Domestication caused decreased nucleotide diversity across NBS genes in Asian cultivars (cultivated 6.23E-03; wild 6.47E-03), but opposite trend (cultivated 6.48E-03; wild 5.91E-03) appeared in European pears. Many NBS-encoding coding regions showed Ka/Ks ratio of greater than 1, indicating the role of positive selection in shaping diversity of NBS-encoding genes in pear. Furthermore, we detected 295 and 122 significantly different SNPs between wild and domesticated accessions in Asian and European pear populations. Two NBS genes (Pbr025269.1 and Pbr019876.1) with significantly different SNPs showed >5x upregulation between wild and cultivated pear accessions, and > 2x upregulation in Pyrus calleryana after inoculation with Alternaria alternata. We propose that positively selected and significantly different SNPs of an NBS-encoding gene (Pbr025269.1) regulate gene expression differences in the wild and cultivated groups, which may affect resistance in pear against A. alternata. Conclusion Proximal duplication mainly led to the different number of NBS-encoding genes in P. bretschneideri and P. communis genomes. The patterns of genetic diversity and positive selection pressure differed between Asian and European pear populations, most likely due to their independent domestication events. This analysis helps us understand the evolution, diversity, and selection pressure in the NBS-encoding gene family in Asian and European populations, and provides opportunities to study mechanisms of disease resistance in pear.

Expression of the egg-laying hormone gene family in the head ganglia ofAplysia

1986 ◽  
Vol 371 (1) ◽  
pp. 49-57 ◽  
Author(s):  
Malladi Shyamala ◽  
John R. Nambu ◽  
Richard H. Scheller
Keyword(s):  
Gene Family ◽  
Egg Laying

Gene family controls a snail's egg laying

Science ◽  
1982 ◽  
Vol 216 (4547) ◽  
pp. 720-721
Author(s):  
R Lewin
Keyword(s):  
Gene Family ◽  
Egg Laying

Genetic variation and population differentiation of the endochitinase gene family in Pinus monticola

2013 ◽  
Vol 300 (6) ◽  
pp. 1313-1322 ◽  
Author(s):  
Jun-Jun Liu ◽  
Danelle Chan ◽  
Rona Sturrock ◽  
Richard A. Sniezko
Keyword(s):  
Genetic Variation ◽  
Gene Family ◽  
Population Differentiation ◽  
Pinus Monticola ◽  
Endochitinase Gene

scholarly journals Genetic variation in the FADS gene family and Docosahexaenoic Acid (DHA) Levels in Randomized trial of DHA‐ Supplemented Mothers

2015 ◽  
Vol 29 (S1) ◽  
Author(s):  
Christina Valentine ◽  
Kelly Dingess ◽  
Alexa Anderson ◽  
Jeanne Kleiman ◽  
Lynette Rogers ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Docosahexaenoic Acid ◽  
Gene Family ◽  
Randomized Trial

scholarly journals Structure and expression of the egg-laying hormone gene family in Aplysia

1985 ◽  
Vol 5 (7) ◽  
pp. 1872-1880 ◽  
Author(s):  
AC Mahon ◽  
JR Nambu ◽  
R Taussig ◽  
M Shyamala ◽  
A Roach ◽  
...  
Keyword(s):  
Gene Family ◽  
Egg Laying

scholarly journals Egg-laying hormone genes of Aplysia: evolution of the ELH gene family

1986 ◽  
Vol 6 (7) ◽  
pp. 2026-2036 ◽  
Author(s):  
JR Nambu ◽  
RH Scheller
Keyword(s):  
Gene Family ◽  
Egg Laying
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