Genetic variation of halophyte New Zealand spinach (Tetragonia tetragonioides) accessions collected in Korea using an AFLP marker

Part of the variation among butterfat yields in dairy cows arises from genetic differences among the animals. The proportion which this bears to the total variance is known as heritability. In the ‘narrow’ sense it is defined (Lush, 1940), as the proportion of the total variance that is due to additive gene effects; the ‘broad’ sense definition includes genetic variation arising from non-additive gene effects as well as that due to additive effects. Since related animals have a proportion of their genes in common the covariance among their production records can be used for estimating genetic variation and hence heritability. This paper discusses three groups of related animals most frequently used for this purpose, twins, daughter-dam pairs and paternal half-sibs, and presents the results of analysing production records of artificially bred heifers in New Zealand, including evidence of the magnitude of the sampling errors of the heritability estimates.

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Genetic Variation, Parentage Testing, and Hybrid Identification in New Zealand Red Deer

The Biology of Deer ◽

10.1007/978-1-4612-2782-3_94 ◽

1992 ◽

pp. 402-402

Author(s):

Mike Tate

Keyword(s):

Genetic Variation ◽

New Zealand ◽

Red Deer ◽

Parentage Testing ◽

Hybrid Identification

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An electrophoretic study of genetic variation in the New Zealand frog genusLeiopelma

New Zealand Journal of Zoology ◽

10.1080/03014223.1981.10427981 ◽

1981 ◽

Vol 8 (4) ◽

pp. 543-550 ◽

Cited By ~ 18

Author(s):

Charles H. Daugherty ◽

Ben D. Bell ◽

Mark Adams ◽

Linda R. Maxson

Keyword(s):

Genetic Variation ◽

New Zealand ◽

Electrophoretic Study

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Historic and contemporary levels of genetic variation in two New Zealand passerines with different histories of decline

Journal of Evolutionary Biology ◽

10.1111/j.1420-9101.2007.01362.x ◽

2007 ◽

Vol 20 (5) ◽

pp. 2035-2047 ◽

Cited By ~ 43

Author(s):

S. S. TAYLOR ◽

I. G. JAMIESON ◽

G. P. WALLIS

Keyword(s):

Genetic Variation ◽

New Zealand

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Population genetic variation in the New Zealand greenshell mussel: locus-dependent conflicting signals of weak structure and high gene flow balanced against pronounced structure and high self-recruitment

Marine Biology ◽

10.1007/s00227-012-2145-9 ◽

2013 ◽

Vol 160 (4) ◽

pp. 931-949 ◽

Cited By ~ 28

Author(s):

Kaijian Wei ◽

Ann R. Wood ◽

Jonathan P. A. Gardner

Keyword(s):

Genetic Variation ◽

Gene Flow ◽

New Zealand ◽

Population Genetic ◽

High Gene Flow ◽

High Gene ◽

Population Genetic Variation ◽

Weak Structure

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Genetic variation in Trithuria inconspicua and T. filamentosa (Hydatellaceae): a new subspecies and a hypothesis of apomixis arising within a predominantly selfing lineage

Australian Systematic Botany ◽

10.1071/sb18013 ◽

2019 ◽

Cited By ~ 2

Author(s):

Rob D. Smissen ◽

Kerry A. Ford ◽

Paul D. Champion ◽

Peter B. Heenan

Keyword(s):

Genetic Variation ◽

New Zealand ◽

Morphological Variation ◽

Genetic Distances ◽

Herbarium Specimens ◽

Minimum Evolution ◽

The North ◽

Genetic Groups ◽

Morphological Differences ◽

High Level

While examining herbarium specimens of Trithuria inconspicua Cheeseman, we observed differences in the stigmatic hairs among plants from New Zealand’s North and South Islands. This motivated us to assess genetic and morphological variation within this species and its sister T. filamentosa Rodway from Tasmania. Samples were collected from lakes in the three disjunct geographic areas where the two species occur. Genetic variation in both species was assessed with simple sequence-repeat (SSR, microsatellite) markers and analyses of genetic distances. We also compared the morphology of northern and southern New Zealand T. inconspicua using fresh material. Samples of each species clustered together in a minimum evolution tree built from genetic distances. Trithuria filamentosa had more genetic diversity than did T. inconspicua. Within T. inconspicua, plants from lakes in the North Island and the South Island formed discrete genetic groups diagnosable by subtle morphological differences. Low levels of heterozygosity in both species are consistent with a high level of selfing, as suggested for other co-sexual Trithuria species, but unusual for a putative apomict. On the basis of genetic and morphological variation, we propose recognition of the northern New Zealand and southern New Zealand lineages of T. inconspicua at subspecies rank.

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