. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 278 BOWEN, DURKIN, STERLING, AND CLARK polypeptides. These statements about the possibilities in Figure 2 are made after study of these alleles in classical genetics pedigrees (Sterling and Bowen, 1977). Examples of the most common pattern (#6 in Figure 2) have been illustrated in photographs (Bowen ct al, 1977; Sterling and Bowen, 1977). Hemoglobins: genetic variation The relative mobilities of the most frequent Hb-1, Hb-2, and Hb-3 electro- morphs in 27 populations are listed in Table I. The reference in each case is the p
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 278 BOWEN, DURKIN, STERLING, AND CLARK polypeptides. These statements about the possibilities in Figure 2 are made after study of these alleles in classical genetics pedigrees (Sterling and Bowen, 1977). Examples of the most common pattern (#6 in Figure 2) have been illustrated in photographs (Bowen ct al, 1977; Sterling and Bowen, 1977). Hemoglobins: genetic variation The relative mobilities of the most frequent Hb-1, Hb-2, and Hb-3 electro- morphs in 27 populations are listed in Table I. The reference in each case is the prevalent electromorph in the San Francisco population (with mobility of 100). Because there is so much interpopulation variation within Artcinia frandscana, no one hemoglobin mobility can be used to identify with certainty any one of the six sibling species. The most striking characteristic is the low value of the relative mobility of Hb-3 in A. persiniilis and A. tnnisiana. However, only two populations of each species were examined and this relationship may not hold in future studies. The fact that Hb-1 has the same mobility in two populations is not meant to imply that the alpha alleles are identical. The Hb-1 in the Yamaguchi population is more sensitive to heat denaturation for 30 minutes at 50° C than is Hb-1 in the San Francisco population, although both have relative mobilities of 100 (procedure in Sterling and Bowen, 1977). In Table I, the presence of alpha locus polymorphism was usually seen as a three-banded Hb-1, patterns #5 and 6, and more rarely as the alternative patterns #2 and 3 in Figure 2. The presence of beta polymorphism was seen as a one- banded Hb-1 with two-banded Hb-2 (Figure 3, samples B and F) or a three- banded Hb-1 combined with a four-banded Hb-2 (sample E). Allelic frequencies at the alpha locus in six populations are listed in Table II. Three of the populations of A. jranciscana include shrimps at two adjacent localities where allele frequencies
Size: 2287px × 1093px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
