scholarly journals Genetic variation and ecotypic diferentiation in the wild rice species Oryza rufipogon. II. Influence of the mating system and life-history traits on the genetic structure of populations.

1989 ◽  
Vol 64 (4) ◽  
pp. 273-285 ◽  
Author(s):  
Pascale BARBIER
Keyword(s):  
Genetic Variation ◽  
Life History ◽  
Genetic Structure ◽  
Mating System ◽  
Wild Rice ◽  
Life History Traits ◽  
Oryza Rufipogon ◽  
Genetic Structure Of Populations ◽  
Wild Rice Species ◽  
In The Wild

Life-history traits and geographical divergence in wild rice (Oryza rufipogon ) gene pool in Indochina Peninsula region

2015 ◽  
Vol 168 (1) ◽  
pp. 52-65 ◽  
Author(s):  
T. Pusadee ◽  
S. Jamjod ◽  
B. Rerkasem ◽  
B.A. Schaal
Keyword(s):  
Life History ◽  
Wild Rice ◽  
Gene Pool ◽  
Life History Traits ◽  
Oryza Rufipogon ◽  
Indochina Peninsula

Prey tell: what quillback rockfish early life history traits reveal about their survival in encounters with juvenile coho salmon

2020 ◽  
Vol 650 ◽  
pp. 7-18 ◽  
Author(s):  
HW Fennie ◽  
S Sponaugle ◽  
EA Daly ◽  
RD Brodeur
Keyword(s):  
Life History ◽  
Early Life ◽  
Life History Traits ◽  
Direct Evidence ◽  
Coho Salmon ◽  
Larval Fish ◽  
Early Life History ◽  
In The Wild ◽  
Otolith Microstructure Analysis ◽  
Pelagic Juvenile

Predation is a major source of mortality in the early life stages of fishes and a driving force in shaping fish populations. Theoretical, modeling, and laboratory studies have generated hypotheses that larval fish size, age, growth rate, and development rate affect their susceptibility to predation. Empirical data on predator selection in the wild are challenging to obtain, and most selective mortality studies must repeatedly sample populations of survivors to indirectly examine survivorship. While valuable on a population scale, these approaches can obscure selection by particular predators. In May 2018, along the coast of Washington, USA, we simultaneously collected juvenile quillback rockfish Sebastes maliger from both the environment and the stomachs of juvenile coho salmon Oncorhynchus kisutch. We used otolith microstructure analysis to examine whether juvenile coho salmon were age-, size-, and/or growth-selective predators of juvenile quillback rockfish. Our results indicate that juvenile rockfish consumed by salmon were significantly smaller, slower growing at capture, and younger than surviving (unconsumed) juvenile rockfish, providing direct evidence that juvenile coho salmon are selective predators on juvenile quillback rockfish. These differences in early life history traits between consumed and surviving rockfish are related to timing of parturition and the environmental conditions larval rockfish experienced, suggesting that maternal effects may substantially influence survival at this stage. Our results demonstrate that variability in timing of parturition and sea surface temperature leads to tradeoffs in early life history traits between growth in the larval stage and survival when encountering predators in the pelagic juvenile stage.

Genetic Relationships of Cory's Shearwater: Parentage, Mating Assortment, and Geographic Differentiation Revealed by DNA Fingerprinting

The Auk ◽  
2000 ◽  
Vol 117 (3) ◽  
pp. 651-662 ◽  
Author(s):  
Corinne Rabouam ◽  
Vincent Bretagnolle ◽  
Yves Bigot ◽  
Georges Periquet
Keyword(s):  
Genetic Variation ◽  
Genetic Structure ◽  
Dna Fingerprinting ◽  
Genetic Relatedness ◽  
Isolation By Distance ◽  
Genetic Relationships ◽  
Cory’S Shearwater ◽  
Genetic Structure Of Populations ◽  
The Social ◽  
Calonectris Diomedea

Abstract We used DNA fingerprinting to assess genetic structure of populations in Cory's Shearwater (Calonectris diomedea). We analyzed mates and parent-offspring relationships, as well as the amount and distribution of genetic variation within and among populations, from the level of subcolony to subspecies. We found no evidence of extrapair fertilization, confirming that the genetic breeding system matches the social system that has been observed in the species. Mates were closely related, and the level of genetic relatedness within populations was within the range usually found in inbred populations. In contrast to previous studies based on allozymes and mtDNA polymorphism, DNA fingerprinting using microsatellites revealed consistent levels of genetic differentiation among populations. However, analyzing the two subspecies separately revealed that the pattern of genetic variation among populations did not support the model of isolation by distance. Natal dispersal, as well as historic and/or demographic events, probably contributed to shape the genetic structure of populations in the species.

Mating system consequences on resistance to herb ivory and life history traits in Datura stramonium

1996 ◽  
Vol 83 (8) ◽  
pp. 1041-1049 ◽  
Author(s):  
Juan Núnez-Farfán ◽  
Roberto A. Cabrales-Vargas ◽  
Rodolfo Dirzo
Keyword(s):  
Life History ◽  
Mating System ◽  
Life History Traits ◽  
Datura Stramonium

Identification and diversity of functional centromere satellites in the wild rice species Oryza brachyantha

2013 ◽  
Vol 21 (8) ◽  
pp. 725-737 ◽  
Author(s):  
Chuandeng Yi ◽  
Wenli Zhang ◽  
Xibin Dai ◽  
Xing Li ◽  
Zhiyun Gong ◽  
...  
Keyword(s):  
Wild Rice ◽  
Wild Rice Species ◽  
Oryza Brachyantha ◽  
In The Wild
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