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Lilith
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Quotes below abstract.
Parker, Joel D. "A major evolutionary transition to more than two
Abstract
Two recently discovered cases of genetic caste determination in social insects might provide the
first example of a major evolutionary
system can be interpreted as comprising primarily individuals
the perspective of demographic extinction. Additionally, I show how this mating system can be
seen as a major evolutionary transition. For these populations, it is apparent that the mechanism
for a three- or
arrangements of chromosomes within individuals, but at the next level of evolutionary complexity,
with the arrangement of chromosomes among individuals within a social system.
>From the paper, "The Big Picture", Box 2:
" * A mating system that evolved twice through hybridization in the seed harvester ant
Pogonomymrmex, where queens must mate with two distinct types of male to produce a colony with both
sterile workers and fertile females, can be considered a sytem with more than two
* Any colony that makes a fertile queen must haev at least three parents, or be descendent from
three distinct and seperate types of gamete.
* Four seperate types of gamete must be maintained in the population or the population will
become extinct.
* The system constitutes a major evolutionary transition under the criteria of Szathmary and
Maynard SMith.
hybridization fo two previously autonomous social insect populations.
order of organization of genetic information within a social population."
Also from the paper:
"If a queen mates by chance exclusively with males from the opposite gene pool, she can only make
workers and parthenogenically produced haploid males. However, the colonies that produce both males
and females, which can be considered hermaphrodites, require three gametic types (sperm from the
yellow and blue gene pools and egg from the queen; Box 1, Figure I). The male gamete from the
opposite gene pool is directed to the soma, or body of the colony (i.e. the workers) whereas the
male gamete from the same gene pool as the queen contruibutes to the female reproductives. The third
gamete type is then the egg of the queen. Only colonies that are descended from this union of the
three gametic types can produce viable female
hermaphroditic individuals and can only result from the contribution of three different types of
gamete and have a minimium of three parents when selfing is excluded, thus satisfying the functional
Parker, Joel D. "A major evolutionary transition to more than two
Abstract
Two recently discovered cases of genetic caste determination in social insects might provide the
first example of a major evolutionary
system can be interpreted as comprising primarily individuals
the perspective of demographic extinction. Additionally, I show how this mating system can be
seen as a major evolutionary transition. For these populations, it is apparent that the mechanism
for a three- or
arrangements of chromosomes within individuals, but at the next level of evolutionary complexity,
with the arrangement of chromosomes among individuals within a social system.
>From the paper, "The Big Picture", Box 2:
" * A mating system that evolved twice through hybridization in the seed harvester ant
Pogonomymrmex, where queens must mate with two distinct types of male to produce a colony with both
sterile workers and fertile females, can be considered a sytem with more than two
* Any colony that makes a fertile queen must haev at least three parents, or be descendent from
three distinct and seperate types of gamete.
* Four seperate types of gamete must be maintained in the population or the population will
become extinct.
* The system constitutes a major evolutionary transition under the criteria of Szathmary and
Maynard SMith.
hybridization fo two previously autonomous social insect populations.
order of organization of genetic information within a social population."
Also from the paper:
"If a queen mates by chance exclusively with males from the opposite gene pool, she can only make
workers and parthenogenically produced haploid males. However, the colonies that produce both males
and females, which can be considered hermaphrodites, require three gametic types (sperm from the
yellow and blue gene pools and egg from the queen; Box 1, Figure I). The male gamete from the
opposite gene pool is directed to the soma, or body of the colony (i.e. the workers) whereas the
male gamete from the same gene pool as the queen contruibutes to the female reproductives. The third
gamete type is then the egg of the queen. Only colonies that are descended from this union of the
three gametic types can produce viable female
hermaphroditic individuals and can only result from the contribution of three different types of
gamete and have a minimium of three parents when selfing is excluded, thus satisfying the functional